Category: The Conversation – USA

Source: The Conversation – USA – By Annie Margaret, Teaching Assistant Professor of Creative Technology & Design, ATLAS Institute, University of Colorado Boulder

When graphic videos go viral, like the recent fatal shooting of Charlie Kirk, it can feel impossible to protect yourself from seeing things you did not consent to see. But there are steps you can take.

Social media platforms are designed to maximize engagement, not protect your peace of mind. The major platforms have also reduced their content moderation efforts over the past year or so. That means upsetting content can reach you even when you never chose to watch it.

You do not have to watch every piece of content that crosses your screen, however. Protecting your own mental state is not avoidance or denial. As a researcher who studies ways to counteract the negative effects of social media on mental health and well-being, I believe it’s a way of safeguarding the bandwidth you need to stay engaged, compassionate and effective.

Why this matters

Research shows that repeated exposure to violent or disturbing media can increase stress, heighten anxiety and contribute to feelings of helplessness. These effects are not just short-term. Over time, they erode the emotional resources you rely on to care for yourself and others.

Protecting your attention is a form of care. Liberating your attention from harmful content is not withdrawal. It is reclaiming your most powerful creative force: your consciousness.

Just as with food, not everything on the table is meant to be eaten. You wouldn’t eat something spoiled or toxic simply because it was served to you. In the same way, not every piece of media laid out in your feed deserves your attention. Choosing what to consume is a matter of health.

And while you can choose what you keep in your own kitchen cabinets, you often have less control over what shows up in your feeds. That is why it helps to take intentional steps to filter, block and set boundaries.

Practical steps you can take

Fortunately, there are straightforward ways to reduce your chances of being confronted with violent or disturbing videos. Here are four that I recommend:

1. Turn off autoplay or limit sensitive content. Note that these settings can vary depending on device, operating system and app version, and can change.

1. Use keyword filters. Most platforms allow you to mute or block specific words, phrases or hashtags. This reduces the chance that graphic or violent content slips into your feed.

2. Curate your feed. Unfollow accounts that regularly share disturbing images. Follow accounts that bring you knowledge, connection or joy instead.

3. Set boundaries. Reserve phone-free time during meals or before bed. Research shows that intentional breaks reduce stress and improve well-being.

Reclaim your agency

Social media is not neutral. Its algorithms are engineered to hold your attention, even when that means amplifying harmful or sensational material. Watching passively only serves the interests of the social media companies. Choosing to protect your attention is a way to reclaim your agency.

The urge to follow along in real time can be strong, especially during crises. But choosing not to watch every disturbing image is not neglect; it is self-preservation. Looking away protects your ability to act with purpose. When your attention is hijacked, your energy goes into shock and outrage. When your attention is steady, you can choose where to invest it.

You are not powerless. Every boundary you set – whether it is turning off autoplay, filtering content or curating your feed – is a way of taking control over what enters your mind. These actions are the foundation for being able to connect with others, help people and work for meaningful change.

More resources

I’m the executive director of the Post-Internet Project, a nonprofit dedicated to helping people navigate the psychological and social challenges of life online. With my team, I designed the evidence-backed PRISM intervention to help people manage their social media use.

Our research-based program emphasizes agency, intention and values alignment as the keys to developing healthier patterns of media consumption. You can try the PRISM process for yourself with an online class I am launching through Coursera in October 2025. You can find the course, Values Aligned Media Consumption, by searching for Annie Margaret at the University of Colorado Boulder on Coursera. The course is aimed at anyone 18 and over, and the videos are free to watch.

Annie Margaret works for/consults to Post Internet Project. She receives funding from University of Colorado Boulder PACES grant.

– ref. How to avoid seeing disturbing content on social media and protect your peace of mind – https://theconversation.com/how-to-avoid-seeing-disturbing-content-on-social-media-and-protect-your-peace-of-mind-265178

Source: The Conversation – USA – By Maurizio Valsania, Professor of American History, Università di Torino

The day after conservative activist Charlie Kirk was shot and killed while speaking at Utah Valley University, commentators repeated a familiar refrain: “This isn’t who we are as Americans.”

Others similarly weighed in. Whoopi Goldberg on “The View” declared that Americans solve political disagreements peacefully: “This is not the way we do it.”

Yet other awful episodes come immediately to mind: President John F. Kennedy was shot and killed on Nov. 22, 1963. More recently, on June 14, 2025, Melissa Hortman, speaker emerita of the Minnesota House of Representatives, was shot and killed at her home, along with her husband and their golden retriever.

As a historian of the early republic, I believe that seeing this violence in America as distinct “episodes” is wrong.

Instead, they reflect a recurrent pattern.

American politics has long personalized its violence. Time and again, history’s advance has been imagined to depend on silencing or destroying a single figure – the rival who becomes the ultimate, despicable foe.

Hence, to claim that such shootings betray “who we are” is to forget that the U.S. was founded upon – and has long been sustained by – this very form of political violence.

Revolutionary violence as political theater

The years of the American Revolution were incubated in violence. One abominable practice used on political adversaries was tarring and feathering. It was a punishment imported from Europe and popularized by the Sons of Liberty in the late 1760s, Colonial activists who resisted British rule.

In seaport towns such as Boston and New York, mobs stripped political enemies, usually suspected loyalists – supporters of British rule – or officials representing the king, smeared them with hot tar, rolled them in feathers, and paraded them through the streets.

The effects on bodies were devastating. As the tar was peeled away, flesh came off in strips. People would survive the punishment, but they would carry the scars for the rest of their life.

By the late 1770s, the Revolution in what is known as the Middle Colonies had become a brutal civil war. In New York and New Jersey, patriot militias, loyalist partisans and British regulars raided across county lines, targeting farms and neighbors. When patriot forces captured loyalist irregulars – often called “Tories” or “refugees” – they frequently treated them not as prisoners of war but as traitors, executing them swiftly, usually by hanging.

In September 1779, six loyalists were caught near Hackensack, New Jersey. They were hanged without trial by patriot militia. Similarly, in October 1779, two suspected Tory spies captured in the Hudson Highlands were shot on the spot, their execution justified as punishment for treason.

To patriots, these killings were deterrence; to loyalists, they were murder. Either way, they were unmistakably political, eliminating enemies whose “crime” was allegiance to the wrong side.

Pistols at dawn: Dueling as politics

Even after independence, the workings of American politics remained grounded in a logic of violence toward adversaries.

For national leaders, the pistol duel was not just about honor. It normalized a political culture where gunfire itself was treated as part of the debate.

The most famous duel, of course, was Aaron Burr’s killing of Alexander Hamilton in 1804. But scores of lesser-known confrontations dotted the decade before it.

In 1798, Henry Brockholst Livingston – later a U.S. Supreme Court justice – killed James Jones in a duel. Far from discredited, he was deemed to have acted honorably. In the early republic, even homicide could be absorbed into politics when cloaked in ritual. Ironically, Livingston had survived an assassination attempt in 1785.

In 1802, another shameful spectacle unfolded: New York Democratic-Republicans DeWitt Clinton and John Swartwout faced off in Weehawken, New Jersey. They fired at least five rounds before their seconds intervened, leaving both men wounded. In this case, the clash had nothing to do with political principle; Clinton and Swartwout were Republicans. It was a patronage squabble that still erupted into gunfire, showing how normalized armed violence was in settling disputes.

Gun culture and its expansion

It is tempting to dismiss political violence as a leftover from some “primitive” or “frontier” stage of American history, when politicians and their supporters supposedly lacked restraint or higher moral standards. But that is not the case.

From before the Revolution onward, physical punishment or even killing were ways to enforce belonging, to mark the boundary between insiders and outsiders, and to decide who had the right to govern.

Violence has never been a distortion in American politics. It has been one of its recurring features, not an aberration but a persistent force, destructive and yet oddly creative, producing new boundaries and new regimes.

The dynamic only deepened as gun ownership expanded. In the 19th century, industrial arms production and aggressive federal contracts put more weapons into circulation. The rituals of punishing those with the wrong allegiance now found expression in the mass-produced revolver and later in the automatic rifle.

These more modern firearms became not only practical tools of war, crime or self-defense but symbolic objects in their own right. They embodied authority, carried cultural meaning and gave their holders the sense that legitimacy itself could be claimed at the barrel of a gun.

That’s why the phrase “This isn’t who we are” rings false. Political violence has always been part of America’s story, not a passing anomaly, and not an episode.

To deny it is to leave Americans defenseless against it. Only by facing this history head-on can Americans begin to imagine a politics not defined by the gun.

Maurizio Valsania does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Yes, this is who we are: America’s 250-year history of political violence – https://theconversation.com/yes-this-is-who-we-are-americas-250-year-history-of-political-violence-265171

Source: The Conversation – USA – By Amy J. Williams, Assistant Professor of Geology, University of Florida

As the Perseverance rover traversed an ancient river valley in Mars’ Jezero Crater back in July 2024, it drilled into the surface and extracted a sample from of a unique, striped rock called Chevaya Falls. The rover’s instruments then analyzed the sample, which is called Sapphire Canyon, and surveyed the surrounding rock.

When scientists started looking into the data, they found two types of iron-rich minerals arranged on the rock in a distinctive, spotted pattern. Both these minerals are associated with life on Earth. One is found around decomposing organic matter on Earth, while the other is produced by certain microbes.

A team of researchers determined in a study published Sept. 10, 2025, that the sample contains a potential biosignature – which could suggest the red planet once hosted microbial life.

These minerals may have formed on the rock when ancient microbes used chemical reactions to produce energy. But chemical reactions not related to life can also produce these minerals under certain conditions.

To learn more, The Conversation U.S. asked Amy J. Williams, an astrobiologist at the University of Florida, about biosignature hunting on Mars and what’s so special about this Sapphire Canyon sample.

What are biosignatures?

A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present life. It must be something that cannot be produced without life. Some examples include fossils, organic molecules derived from a biological process, or mineral patterns that form only through microbial activity.

A potential biosignature, which is how the Sapphire Canyon finding is described, is a substance or structure that might have a biological origin but requires more data or further study before scientists can make a conclusion about the absence or presence of life.

How do scientists determine whether something could be a biosignature on Mars?

Biosignatures come in many different flavors – chemical, physical or structural. Some are rather obvious, like a dinosaur fossil on Earth, but most are far more nuanced.

The search for ancient life on Earth partially informs the search for biosignatures on Mars. Researchers rely on subtle clues preserved in the rock record to address questions such as how long ago microbial life arose on Earth. We search for that evidence in environments such as craters and lake beds with high preservation potential, meaning those that are likely to preserve the biosignatures.

Scientists can apply these techniques to the search for life on Mars. That is why Perseverance was sent to Jezero Crater. In the ancient past, the crater hosted a river-fed lake, which on Earth would represent a habitable environment: one where life would want to live if it ever arose.

This crater was an ideal location to search for ancient life preserved in the rock record on Mars. Astrobiologists then search for chemical, textural and mineral patterns that resemble processes influenced by life back on Earth.

What makes this sample unique and interesting?

The Sapphire Canyon sample is unique because Perseverance’s PIXL and SHERLOC instruments revealed distinctive textures that were dubbed “leopard spots.” These spots are concentric reaction fronts – places where chemical and physical reactions occur – enriched in the minerals vivianite, which contains iron phosphate, and greigite, which is made of iron sulfide.

On Earth, vivianite often forms in environments with lots of decaying organic matter, while certain microbes that use sulfate for energy can produce greigite. Compounds in both these minerals are part of a chemical process called redox gradients, which refers to a series of gradual changes over physical space where chemicals can oxidize (lose electrons) or reduce (gain electrons).

One example is leaving your metal bike out in the rain. Over time, the reduced iron (Fe2+) will lose an electron and oxidize to rust (Fe3+). This process can happen nonbiologically, as exposure to water and oxygen drive the chemical changes that take your new bike to a rusty bike – I suggest not leaving it in the rain.

But some oxidation and reduction processes are so slow on their own that the only way they can occur is with living organisms that push the reactions forward. This process is how many microbes, such as bacteria, get the energy to live. Because these two minerals in the Sapphire Canyon sample both occur in redox gradients, scientists predict that microbial life, if it was ever present, could have played a role in the reactions that created these mineral signatures.

Now, scientists are looking into the explanations that wouldn’t require life to form these features on the sample.

Did scientists expect to find a sample like this?

This was a finding that we had hoped for. However, it was somewhat unexpected in this particular location. This sample came from some of the youngest sedimentary rocks the mission has investigated to date. An earlier prediction had assumed signs of ancient life would come from older Martian rock formations.

Finding these features in younger rocks widens the window of time that Mars was potentially habitable and suggests that Mars could have been habitable later in the planet’s history than scientists previously thought, and older rocks might also hold signs of life that are simply harder to detect.

What are the next steps to tell whether the sample indicates signs of past life, or whether the signature is from a nonbiological process?

The mineral associations are a potential fingerprint for those redox reactions that can occur when microbes drive the reaction forward – but abiotic processes, such as sustained high temperatures, acidic conditions and binding by organic compounds, could also explain them.

However, the Cheyava Falls rock shows no signs that it’s been exposed to the high heat or acidity usually required for greigite and vivianite to form nonbiologically. Still, the only definitive way to answer this question is to return the sample to Earth, where scientists can use advanced laboratory techniques to distinguish biological from nonbiological origins.

Amy J. Williams receives funding from NASA and is a scientist on the NASA Mars 2020 Perseverance rover mission.

– ref. Scientists detected a potential biosignature on Mars – an astrobiologist explains what these traces of life are, and how researchers figure out their source – https://theconversation.com/scientists-detected-a-potential-biosignature-on-mars-an-astrobiologist-explains-what-these-traces-of-life-are-and-how-researchers-figure-out-their-source-265157

Source: The Conversation – USA (2) – By Tara Sonenshine, Edward R. Murrow Professor of Practice in Public Diplomacy, Tufts University

American college campuses from Tucson to Tallahassee are buzzing with the familiar routine of students getting settled in classes and dorms.

One new trend, though, is emerging.

An estimated 30% to 40% fewer international students are expected on American college campuses in the fall of 2025, compared with trends in the 2024-2025 academic year, according to according to NAFSA: Association of International Educators – a nonprofit that focuses on international education – and JB International, a for-profit educational technology firm.

In total, an estimated 150,000 fewer international students were expected to arrive this fall, due to new visa restrictions and visa appointments being canceled at U.S. embassies and consulates in many countries, such as India, China, Nigeria and Japan. NAFSA and JB International are expected to release updated data on international student enrollment in November 2025.

There were over 1.1 million international students – more than half of whom were from China or India – on American college campuses in the 2023-2024 academic year, according to the Institute for International Education, which monitors foreign student programs and shares the most comprehensive available recent data.

This sharp drop in international students could cost the U.S. economy US$7 billion in the 2025-26 school year, according to estimates from NAFSA.

For every three international students in the U.S., one new American job is created or supported by the average $35,000 these students spend in their local communities on housing, food and transportation, and other costs.

As a senior fellow at the Fletcher School of Law and Diplomacy at Tufts University and a former undersecretary of state for public diplomacy in the Obama administration, I oversaw many of the student exchange programs involving multiple countries around the globe. I foresee a major economic crisis over international students that could last for years.

A growing trend, quickly reversed

International students began coming to the U.S. in the early 20th century, when philanthropists like the Carnegie, Rockefeller and Mott families sought out scholars from the U.S. to go overseas. These philanthropists helped create international fellowships and grants that later on would often be funded by the U.S. government – like the Fulbright program, which gives money to American students to spend time and research abroad.

By 1919, nonprofits like the Institute for International Education
were serving as mediators between foreign students and American universities.

International student enrollment in the U.S. has steadily risen since the end of World War II, coinciding with an emerging world that became easier and cheaper to travel across. While 26,000 foreign students came to the U.S. in the 1949–1950 school year, that number had ballooned to 286,343 three decades later.

In the 1990s, there were more than 400,000 international students attending school in the U.S. each year. That number continued to climb and surpassed 500,000 in the early 2000s.

International student enrollment in the U.S. first topped more than 1 million in the 2015-2016 school year.

While international students made up just 1% of the 2.4 million university and college students in the U.S. in 1949-50, they were about 6% of the total 18.9 million students in the U.S. in 2023-24, according to the Migration Institute, a nonpartisan research organization.

This percentage is relatively small, however, compared with the international student representation in other countries.

International students represented 38% of overall Canadian university enrollment, made up 31% of all university students in Australia and 27% of all students in the United Kingdom during the 2024-2025 school year.

Trump’s warnings to international students

Within the first 90 days of his return to office, President Donald Trump invoked the 1952 Immigration and Nationality Act, which gives the secretary of state the authority to expel foreign students whose behavior could pose a threat to U.S. foreign policy interests.

The administration has since revoked the visas of 6,000 foreign students, the State Department reported in August 2025.

There have also been several high-profile arrests of international students, including Rumeysa Ozturk, a Turkish student at Tufts University. Immigration and Customs Enforcement officials arrested Ozturk in March 2025 shortly after the administration revoked her visa. Her arrest came one year after she co-wrote an opinion piece calling for Tufts to recognize a genocide in the Gaza Strip and to divest from all companies with ties to Israel.

Secretary of State Marco Rubio defended Ozturk’s arrest, saying in March that the government will not give visas to people who come to the U.S. intending to do “things like vandalizing universities, harassing students, taking over buildings, creating a ruckus.”

A federal judge ruled in May that there was no evidence showing Ozturk posed a credible threat to the U.S. She was then released from an immigration detention facility.

But her arrest coincided with the arrest of other international students in high-profile cases, like Mahmoud Khalil, a Columbia graduate student and U.S. permanent resident who was arrested after he participated in Palestinian rights protests on campus. These arrests all sent a message to foreign students: It is not as safe as it once was to come to the U.S.

The administration has announced other changes that will make it more difficult for foreign students to spend time in the U.S. – like a 2025 travel ban that prohibits or restricts the entry of people from 19 countries, mostly in the Middle East and Africa.

The administration also announced in August that it plans to cap the length of time foreign students can stay in the U.S. to four years. Currently, foreign students have a 60-day grace period to stay in the U.S. following graduation, before they must secure a work visa or another kind of authorization to legally stay in the country.

A simple math equation

New York University, Northeastern University in Boston and Columbia University hosted the largest number of international students in 2023-2024. But international students are not concentrated in just major, liberal cities.

Arizona State University hosted the fourth-highest number of international students that school year, and Purdue University in Indiana and the University of North Texas also are among the 10 schools that host the total most international students.

All of these schools – and others, like Kansas City colleges and universities, which are now welcoming far fewer international students than they planned to in the spring because some of the students could not get visas – will feel the financial effects of turning international students away from the U.S.

Doing the math, I believe that a solid argument can be made for increasing the numbers of foreign students coming to the U.S., not cutting back.

Tara Sonenshine does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Fewer international students are coming to the US, costing universities and communities that benefit from these visitors – https://theconversation.com/fewer-international-students-are-coming-to-the-us-costing-universities-and-communities-that-benefit-from-these-visitors-264012

Source: The Conversation – USA (3) – By Joanna Fong-Isariyawongse, Associate Professor of Neurology, University of Pittsburgh

Have you ever woken up after a night of poor sleep, glanced in the mirror and thought, “I look tired?”

You’re not imagining it.

I am a neurologist who specializes in sleep medicine. And though “beauty sleep” may sound like a fairy tale, a growing body of research confirms that sleep directly shapes how our skin looks, how youthful it appears and even how attractive others perceive us to be.

What happens during sleep

Sleep is not just down time. Your body moves through distinct stages that serve different restorative functions. Deep, slow-wave sleep is the primary stage during which the body prioritizes tissue repair, muscle recovery and collagen production.

Growth hormone is released during this sleep stage, with most daily secretion occurring in the early part of the night. This hormone drives the body’s repair and rebuilding processes, helping to heal tissues, restore muscles and boost the production of collagen, the protein that keeps skin firm and elastic.

Slow-wave sleep also creates a unique hormonal environment that benefits the skin. Cortisol, the body’s main stress hormone, falls to its lowest point during this stage. Lower cortisol protects collagen, reduces inflammation and supports the skin barrier. At the same time, higher levels of growth hormone and prolactin, a hormone that helps regulate the immune system and cell growth, enhance immune function and tissue repair, helping skin recover from daily stressors.

The skin–sleep connection

The skin is your body’s largest organ, and it works hard while you sleep. Adequate sleep promotes hydration and barrier function, helping your skin maintain moisture and resist irritation. In contrast, sleep deprivation increases water loss through the skin, leaving it drier and more vulnerable to damage and visible signs of aging.

Sleep also plays a role in acne, a common skin condition that affects people of all ages. Poor sleep can raise inflammation and stress hormones such as cortisol, both of which may worsen breakouts. Consistent, restorative sleep, on the other hand, supports your skin’s ability to regulate oil production and recover from irritation.

Collagen repair and elasticity also depend heavily on adequate rest. In one study, short-term sleep restriction, defined as just three hours of sleep per night for two nights in a row, reduced skin elasticity and made wrinkles more noticeable.

Chronic sleep deficiency, also known in sleep medicine as insufficient sleep syndrome, refers to getting fewer than seven hours of sleep per night for at least three months, accompanied by daytime fatigue or impaired functioning. This state disrupts collagen production, weakens the skin barrier and fuels low-grade inflammation that undermines healing.

Studies show that the hormonal disruptions that occur with sleep loss elevate cortisol and accelerate oxidative stress, an imbalance between cell-damaging molecules and the body’s defenses, while impairing the very processes that keep skin resilient. Over time, these changes accelerate biological aging and leave the body less resilient to daily stressors.

Your face tells the story

Sleep loss does not only affect how skin functions. It also changes how the face appears to others. Controlled studies show that even after a few nights of reduced sleep, others consistently rated them as less attractive, less healthy and more fatigued. Common cues include paler skin, darker under-eye circles, red or swollen eyes, drooping eyelids and downturned mouth corners.

These signals are subtle but socially significant. Observers are less inclined to interact with or approach someone who looks sleep-deprived. Sleep also affects empathy and aesthetic perception, meaning that people who are well rested not only view others more positively but are also, in turn, viewed more positively by others. This reciprocal effect may help explain why job interviewers, dates, or even friends tend to respond more favorably to a well-rested face.

Sleep even influences how we perceive ourselves. People with poor sleep often report lower satisfaction with their own appearance.

Supporting your health

Prioritizing sleep is a powerful and accessible way to support appearance and overall health. So the next time you consider trading sleep for a few extra hours of work or entertainment, remember that your skin, your health and even your social presence will benefit from those hours of rest.

Joanna Fong-Isariyawongse does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Beauty sleep isn’t a myth – a sleep medicine expert explains how rest keeps your skin healthy and youthful – https://theconversation.com/beauty-sleep-isnt-a-myth-a-sleep-medicine-expert-explains-how-rest-keeps-your-skin-healthy-and-youthful-259363

Source: The Conversation – USA (3) – By Mohammad S. Jalali, Associate Professor, Systems Science and Policy, Harvard University

In May 2025, the White House proposed reducing the budget of the National Institutes of Health by roughly 40% – from about US$48 billion to $27 billion. Such a move would return NIH funding to levels last seen in 2007. Since NIH budget records began in 1938, NIH has seen only one previous double-digit cut: a 12% reduction in 1952.

Congress is now tasked with finalizing the budget ahead of the new fiscal year, which begins Oct. 1. In July, the Senate rejected the White House’s proposed cuts and instead advanced a modest increase. And in early September, the House of Representatives also supported a budget that maintains the agency’s current funding levels.

However, talk of cutting NIH funding is not a new development. Such proposals tend to resurface from time to time, and the ongoing discussion has created uncertainty about the stability of research overall and prompted concern among scientists about the future of their work.

As researchers studying complex health policy systems – and specifically, science funding policy – we see the NIH as one node in an interconnected system that supports the discovery of new knowledge, trains the biomedical workforce and makes possible medical and public health advances across the U.S.

Our research shows that while cutting NIH funding may appear to save money in the short term, it can trigger a chain of effects that increase long-term health care costs and slow the development of new treatments and public health solutions over time.

Seeing the bigger picture of NIH funding

NIH funding does not just support the work of individual researchers and laboratories. It shapes the foundation of American science and health care by training scientists, supporting preventive health research and creating the knowledge that biomedical companies can later build into new products.

To understand how funding cuts may affect scientific progress, the training of new researchers and the availability of new treatments, we took a broad look at existing evidence. We reviewed studies and data that connect NIH funding, or biomedical research more generally, to outcomes such as innovation, workforce development and public health.

In a study published in July 2025, we built a simple framework to show how changes in one part of the system – research grants, for example – can lead to changes in others, like fewer training opportunities or slower development of new therapies.

Eroding the basic research foundation

The NIH funds early-stage research that lacks immediate commercial value but provides the building blocks for future innovations. This includes projects that map disease pathways, develop new laboratory methods or collect large datasets that researchers use for decades.

For example, NIH-supported research in the 1950s identified cholesterol and its role in disease pathways for heart disease, helping to lay the groundwork for the later discovery of statins used by millions of people to lower cholesterol levels. Cancer biology research in the 1960s led to the discovery of cisplatin, a chemotherapy prescribed to 10% to 20% of cancer patients. Basic research in the 1980s on how the kidneys handle sugar helped pave the way for a new class of drugs for Type 2 diabetes, some of which are also used for weight management. Diabetes affects about 38 million Americans, and obesity affects more than 40% of the adults in the U.S.

Without this kind of public, taxpayer-funded investment, many foundational projects would never begin, because private firms rarely take on work with long timelines or unclear profits. Our study did not estimate dollar amounts, but the evidence we reviewed shows that when public research slows, downstream innovation and economic benefits are also delayed. That can mean fewer new treatments, slower adoption of cost-saving technologies and reduced growth in industries that depend on scientific advances.

Reducing the scientific workforce

By providing grants that support students, postdoctoral researchers and early-career investigators, along with the labs and facilities where they train, the NIH also plays a central role in preparing up-and-coming scientists.

When funding is cut, fewer positions are available and some labs face closure. This can discourage young researchers from entering or staying in the field. The effect extends beyond academic research. Some NIH-trained scientists later move into biotechnology, medical device companies and data science roles. A weaker training system today means fewer skilled professionals across the broader economy tomorrow.

For example, NIH programs have produced not only academic researchers but also engineers and analysts who now work on immune therapies, brain-computer interfaces, diagnostics and AI-driven tools, as well as other technologies in startups and in more established biotech and pharmaceutical companies.

If those training opportunities shrink, biotech and pharmaceutical industries may have less access to talent. A weakened NIH-supported workforce may also risk eroding U.S. global competitiveness, even in the private sector.

Innovation shifts toward narrow markets

Public and private investment serve different purposes. NIH funding often reduces scientific risk by advancing projects to a stage where companies can invest with greater confidence. Past examples include support for imaging physics that led to MRI and PET scans and early materials science research that enabled modern prosthetics.

Our research highlights the fact that when public investment recedes, companies tend to focus on products with clearer near-term returns. That may tilt innovation toward specialty drugs or technologies with high launch prices and away from improvements that serve broader needs, such as more effective use of existing therapies or widely accessible diagnostics.

Some cancer drugs, for instance, relied heavily on NIH-supported basic science discoveries in cell biology and clinical trial design. Independent studies have documented that without this early publicly supported work, development timelines lengthen and costs increase, which can translate into higher prices for patients and health systems. When public funding shrinks and companies shift toward expensive products instead of lower-cost improvements, overall health spending can rise.

What looks like a budget saving in the near term can therefore have the opposite effect, with government programs such as Medicare and Medicaid ultimately shouldering higher costs.

Prevention and public health are sidelined

NIH is also a major funder of research aimed at promoting health and preventing disease. This includes studies on nutrition, chronic diseases, maternal health and environmental exposures such as lead or air pollution.

These projects often improve health long before disease becomes severe, but they rarely attract private investment because their benefits unfold gradually and do not translate into direct profits.

Delaying or canceling prevention research can result in higher costs later, as more people require intensive treatment for conditions that could have been avoided or managed earlier. For example, decades of observation in the Framingham Heart Study shaped treatment guidelines for risk factors such as high blood pressure and heart rhythm disorders. Now this cornerstone of prevention helps to avert heart attacks and strokes, which are far more risky and costly to treat.

A broader shift in direction?

Beyond these specific areas, the larger issue is how the U.S. will choose to support science and medical research going forward. For decades, public investment has enabled researchers to take on difficult questions and conduct decades-long studies. This support has contributed to advances ranging from psychosocial therapies for depression to surgical methods for liver transplants that do not fit neatly into market priorities, unlike drugs or devices.

If government support weakens, medical and health research may become more dependent on commercial markets and philanthropic donors. That can narrow the kinds of problems studied and limit flexibility to respond to urgent needs such as emerging infections or climate-related health risks.

Countries that sustain public investment may also gain an edge by attracting top researchers and setting global standards for new technologies.

On the other hand, once opportunities are lost and talent is dispersed, rebuilding takes far more time and resources.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

– ref. Proposed cuts to NIH funding would have ripple effects on research that could hamper the US for decades – https://theconversation.com/proposed-cuts-to-nih-funding-would-have-ripple-effects-on-research-that-could-hamper-the-us-for-decades-262419

Source: The Conversation – USA (3) – By Ryan Burge, Professor of Practice, Danforth Center on Religion and Politics, Washington University in St. Louis

For decades, one of the most consistent findings in religion research has been that women tend to be more religious than men. This holds true across dozens of countries and on nearly every measure of religiosity, from how often someone prays to how important faith is in their lives.

Social scientists have struggled to pinpoint a universal cause for this pattern. Theories run the gamut – from the claim that it has something to do with women being more risk averse to the argument that religion offers women support for social responsibilities around birth, death and raising children.

In the past few years, however, survey data in the U.S. has started to tell a different story. Today, there is less empirical evidence that women are more religious than men – a debate I’ve tracked closely as a quantitative scholar of American religion. Looking at Generation Z, in particular, a number of results have raised some eyebrows, pointing toward other divides throughout the country.

Shrinking gap

In 2023, the American Enterprise Institute’s Survey Center on American Life found that 39% of Gen Z women say they do not have a religious affiliation, compared to 34% of men from the same generation. The past several waves of data from the Cooperative Election Study, a national survey, have found that men born after 1990 – a mix of younger millennials and Gen Z – are slightly more likely to attend religious services weekly than women of the same age.

When I give a lecture or presentation, often the first question I’m asked is about this surprising result.

I warn people to take it with a grain of salt. According to data from the 2022 General Social Survey, one of the most well-respected national polls, the opposite is true: among Americans ages 18-45, women are still more likely to attend a house of worship nearly every week. And the Pew Religious Landscape Study, which was released in February 2025, concludes, “While the gender gap in American religion appears to be narrowing, there are still no birth cohorts in which men are significantly more religious than women.”

All together, a growing body of survey evidence suggests that the overall religiosity of young American adults does not vary significantly by gender.

Anecdotal reports about scores of young men flocking to church or joining religious communities like Eastern Orthodoxy seem to grab headlines. However, the idea of a reversal in the gender gap is not supported by evidence – only that it is narrowing.

Drifting apart

If America’s gender gap around religion is changing, perhaps politics can help explain why.

A growing body of survey data suggests that overall, young men are moving further to the right on political matters, while young women are becoming increasingly progressive.

An NBC News poll in April 2025 found that among people ages 30-44, men were about 9 percentage points more likely to approve of Donald Trump’s job performance than women of the same age. Among those ages 18-29, the gap widened to a staggering 21 points.

A few months later, NBC polled nearly 3,000 young Americans about how they define success, asking them to select the top three factors from a list of 13. Overall, men between 18-29 rated “being married” and “having children” slightly higher than women their age. Among Gen Z men who voted for Trump, having children was the most important. Women who voted for Kamala Harris, meanwhile, ranked children near the bottom.

The largest religious traditions in America today are evangelical Protestant Christianity and the Catholic Church. Both groups’ teachings emphasize “traditional” gender roles, marriage and having children. For a growing wave of young progressive women, such teachings are at odds with their desire to make advances in the workplace and society. Some analysts argue that those tensions, as well as views on LGBTQ+ rights, are driving women away from institutional religion.

Opposite directions

As a result, Generation Z may be the most visible manifestation of the growing “God gap” in American politics.

In short, the religious compositions of the two major political parties have gone in opposite directions. In the 1990s, 67% of Republicans said they believed in God without a doubt, and 63% of Democrats said the same, according to my analysis of General Social Survey data. By 2022, certain belief in God had dropped to 39% among Democrats, while holding fairly steady among Republicans, at 63%. Twenty-eight percent of Democrats regularly attend a house of worship, compared to 42% of Republicans; in the 1970s, the gap was only 4 percentage points.

This all points to a broader, potentially more polarized future for the American public. Already, there is evidence that a growing number of people choose their house of worship based on political tribe, not just theological beliefs, making congregations less diverse. Women’s and men’s competing interests and preferences may make it harder to find a suitable partner. Common ground may be harder to find when there are fewer chances for interaction and conversation.

Ultimately, these trends suggest a future where polarization extends beyond politics and into the very fabric of American life – shaping where people worship, who they marry, and how communities form.

Ryan Burge receives funding from the John Templeton Foundation.

Ryan Burge is the Research Director for Faith Counts.

– ref. Social scientists have long found women tend to be more religious than men – but Gen Z may show a shift – https://theconversation.com/social-scientists-have-long-found-women-tend-to-be-more-religious-than-men-but-gen-z-may-show-a-shift-263693

Source: The Conversation – USA – By Richard Gerhold, Professor of Parasitology, University of Tennessee

A moose in Minnesota stumbles onto the road. She circles, confused and dazed, unable to orient herself or recognize the danger of an oncoming semitruck. What kills her is the impact of 13 tons of steel, but what causes her death is more complicated. Tunneling through her brain is a worm that doomed both of them to die.

Commonly known as the brain worm, Parelaphostrongylus tenuis is a parasitic nematode that infects a large range of wild and domestic herbivores, such as moose and elk. The worm can migrate into the brain of unsuspecting hosts, where it may cause catastrophic disease and death.

While the Minnesotan moose is a hypothetical example, this worm has caused serious neurological impairments in many animals. The symptoms of the disease can vary, from disorientation and circling to paralysis across the animal’s back end, the inability to stand up and potentially death.

As parasitologists, we’ve been studying the effects these worms can have on moose populations in Minnesota. Tracking the spread of parasites and diseases in wild moose populations helps wildlife managers preserve those populations and reduce the spread to other animals or livestock.

While white-tailed deer can harbor these parasites without having any symptoms of disease, the worm can wreak havoc on populations of ungulates, like moose and elk, that aren’t adapted to the parasite. And tracking the disease in the wild isn’t easy.

The disease cycle

White-tailed deer harboring these parasites may shed the worms into their environment when they defecate. Snails and slugs then take up this larva, where it develops inside them to the point where it’s capable of infecting other types of deer, moose, elk and cattle.

For us as parasitologists, the biggest challenge lies in detecting the disease before it irreversibly damages its host. Only white-tailed deer pass the parasite in their feces. This means we can’t detect this parasite by analyzing the poop of moose, or any animal, besides the white-tailed deer.

Once an animal is visibly sick, it’s too late for it to make a recovery. Only after their death can we recover the body and identify the parasite from where it’s embedded in the brain or spinal cord.

Even once we’ve recovered the body, finding a single, threadlike worm within the entirety of a moose or elk’s nervous system is time-consuming and often futile. Usually, wildlife biologists can only tell that an animal was infected by looking at microscopic evidence that suggests a parasite migrated through the central nervous system, and by analyzing DNA fragments left behind by the worm.

Diagnostic confusion

To make things even harder, disease signs caused by other worms, like the arterial worm Elaeophora schneideri, look similar to brain worm and can affect Minnesota moose. The arterial worm generally lives in the neck of black-tailed deer and mule deer. Like P. tenuis, this parasite moves around in the bodies of hosts that aren’t adapted to it, and can cause harm.

Biologists attempting to diagnose a wild moose based on the visible clinical signs alone could easily confuse these two parasites and incorrectly conclude which parasite may have caused the disease. Given that the transmission of the parasites are vastly different, separate mitigation steps would be employed to minimize transmission.

And, biologists diagnosing based on microscopic findings in samples from the animal’s body still risk misidentifying the worm. The best way to get an accurate diagnosis is through genetic analysis – analyzing the DNA sequence of the worm causing disease. The DNA sequence will tell researchers whether it is P. tenuis or E. schneideri.

Serological testing

While genetic analysis can help researchers monitor the presence of the disease in a population, they can’t use it to diagnose live animals. But our team, with colleagues at the University of Tennessee College of Veterinary Medicine’s molecular diagnostic lab, has created a test that can help diagnose animals while they’re alive.

When a moose or elk has a brain worm, its cells produce antibodies, which are a type of protein in the blood that try to defend against the parasite. Our serological test looks for these antibodies in an animal’s blood.

To perform the testing, wildlife health specialists collect blood from sick or recently deceased animals and ship it to the lab. There, scientists run part of the blood through a test that looks for these specific antibodies against P. tenuis, so the animal isn’t misdiagnosed with another type of parasite.

This test, which the molecular diagnostic lab is now using to test samples sent in from across the country, has helped us monitor populations of moose and elk for this parasite. It can detect the parasite’s presence while the animals are still alive and without expensive genetic testing.

Ripple effects from testing

After the Minnesotan moose from our example is hit by a semitruck, wildlife officials find the deceased moose on the side of the road and quickly take a sample of her blood for testing. They send it off to the University of Tennessee, where it joins thousands of other samples from moose, elk and even caribou across North America.

Each submission helps our colleagues in the molecular diagnostic lab improve the test. The test can also screen blood samples from animals that live in areas where researchers haven’t detected P. tenuis. If positive, those results may alert biologists that the parasite is expanding into new areas and help them manage populations.

If a test at the molecular diagnostic lab indicates that the parasite is present in a new population early on, they will have more time to try to curb the disease spread. Wildlife managers may try to reduce snail and slug populations with controlled burns. Or, they might increase how many white-tailed deer hunters in the area can harvest to reduce the deer population.

We hope that in the future, other researchers will use the techniques behind this serological test to make similar tests for other infectious disease agents containing RNA or DNA.

Richard Gerhold works for the University of Tennessee and his research lab offers to perform serology tests for moose and elk for wildlife groups, as mentioned in the article, but this service is not widely advertised, and is not for profit. Funding for this research came from the National Center of Veterinary Parasitology, the National Park Service, and the Northeastern Wildlife Health Cooperative via funding from the state wildlife agencies of Maine, New Hampshire and Vermont, and the Minnesota Department of Natural Resources.

Jessie Richards works for the University of Tennessee and her research lab offers to perform serology tests for moose and elk for wildlife groups, as mentioned in the article, but this service is not widely advertised, and is not for profit. Her research funding comes from the University of Tennessee.

– ref. Parasitic worms bury themselves in the brains of moose and elk – a new test can help diagnose these animals to prevent disease spread – https://theconversation.com/parasitic-worms-bury-themselves-in-the-brains-of-moose-and-elk-a-new-test-can-help-diagnose-these-animals-to-prevent-disease-spread-214908

Source: The Conversation – USA – By Thomas Morgan, Associate Professor of Evolutionary Anthropology, Institute of Human Origins, Arizona State University

While developing his theory of natural selection, Charles Darwin was horrified by a group of wasps that lay their eggs within the bodies of caterpillars, with the larvae eating their hosts alive from the inside-out.

Darwin didn’t judge the wasps. Instead, he was troubled by what they revealed about evolution. They showed natural selection to be an amoral process. Any behavior that enhances fitness, nice or nasty, would spread.

Selection isn’t limited to DNA. All systems of inheritance, variation and competition inexorably lead to selection. This includes culture, and I’m one of a team of researchers at Arizona State University’s Institute of Human Origins who use a cultural evolutionary approach to understand human bodies, behavior and society.

Culture shapes everything people do, not least scientific practice – how scientists decide what questions to ask and how to answer them. Good scientific practices lead to public benefits, while poor scientific practices waste time and money.

Scientists vary. They might be meticulous measurement-takers or big-picture visionaries; cautious conservatives or iconoclastic radicals; soft-spoken introverts or ambitious status-seekers. These practices are passed on to the next generation through mentorship: All scientific careers start with years of one-on-one training, where an experienced scientist passes on their approach to their students. A successful scientist can train dozens of graduate students; meanwhile, poor strategies lead to an early career exit.

The currency of scientific success

When scientists apply for jobs or funding, the primary way they compete is through their research papers: reports they write describing their work that are peer-reviewed and published in scholarly journals.

One of the sources of selection on scientists is how these papers are evaluated. Experts can provide detailed assessments, but many hiring or promotion committees use blunter metrics. These include the total number of papers a scientist publishes, how many times their papers are cited – that is, referred to in other work – and their “h-index”: a statistic that blends paper and citation counts into a single number. Journals are rated too, with “impact factors” and “journal ranks”.

All these metrics can incentivize some rather odd outcomes. For instance, citing your own past papers in each new one that you write can inflate your h-index. Some unscrupulous researchers have taken this to the next level, forming “citation cartels” where the members agree to cite one another’s work as much as possible, no matter the quality or relevance.

Recently there have been moves away from these simple-yet-flawed metrics. But without better alternatives, institutions simply put more emphasis on the raw number of publications, selecting for scientists to publish as much as they can, as fast as they can. Perhaps you’ve heard of the slogan “publish or perish,” or maybe even played the board game.

The publishing landscape

Scientists aren’t the only organisms in the scientific ecosystem. There are also publishers, the owners of the journals. Publishers live in an often-uneasy symbiosis with scientists, publishing their work, but also needing to make money off the process.

The traditional model was for journals to charge readers – or, more often, university libraries – subscription fees. This setup selects for journals to carefully vet their contents, as otherwise they will lose readers. Indeed, prominent journals reject the vast majority of submissions they receive.

The downside is that subscription fees block access for readers who can’t afford them. If you’ve ever tried to read an academic paper but been presented with a paywall, this is why.

Open access adaptation

The Open Access movement aims to make journal articles free for everyone to read and has led to many journals removing reader paywalls. But journals still need money, so most Open Access journals have swapped subscription fees for publication fees, paid by scientists on a per-paper basis.

This model allows anyone to read papers for free, but, as I have argued, it has also changed the selection pressures on journals, leading to some perverse outcomes.

There are two ways for journals to succeed in this new landscape. For prestigious journals, they can leverage their reputation to charge large publication fees, sometimes over US$10,000 per paper.

For low-prestige journals, no one would pay such large fees. They must instead focus on quantity over quality. Like scientists, they must “publish or perish,” and publishers are already adapting to this new pressure – publishing more papers, opening new journals, increasing acceptance rates and expediting peer review.

These changes created a new niche for scientists too, who are coevolving with the journals. An underhanded minority are adapting to laxer journal policies by using artificial intelligence to accelerate their research pipeline. The resulting papers are very low quality and so risk the authors’ reputations. However, until they are exposed, this strategy boosts research output and so brings rewards.

Alternatives

Publication fees aren’t the only model out there.

Diamond Open Access journals don’t charge fees at all and instead rely on donations.

Some scientists share what are called preprints, skipping peer review and putting their papers online for everyone to read for free. They may also publish them later in a conventional journal.

Academic society journals, which date back to the 17th century, often tie free publication to society membership and rely on interpersonal relationships and reputations to incentivize high-quality work.

PCI’s or “peer community in’s” are groups of volunteer scientists aiming to wrest peer review away from journals entirely.

All of these are interesting options, and all would change the selective forces acting on both scientists and publishers. It makes sense to think about the evolutionary changes they could produce on the scientific landscape.

Why scientific evolution matters

Darwin’s parasitic wasps reveal two truths: Selection is both unavoidable and amoral.

Whatever the domain, selection can lead to outcomes you might not like. For science, these might include the emergence of paper mills, mass retractions, citation cartels, fraud, excessive fees or bizarre AI-written papers.

But science can also do tremendous good: It produced modern medicine, discovered electricity and computing, and put people on the Moon. Like Darwin with his wasps, those of us who care about the scientific enterprise don’t need to limit ourselves to asking why some people do bad things. Instead, we need to ask why bad acts are selected in the first place and design better systems.

Don’t blame the player, redesign the game. If we can put better rules in place, evolution will do the rest.

Thomas Morgan does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. ‘Publish or perish’ evolutionary pressures shape scientific publishing, for better and worse – https://theconversation.com/publish-or-perish-evolutionary-pressures-shape-scientific-publishing-for-better-and-worse-259258

Source: The Conversation – USA – By Arie Perliger, Director of Security Studies and Professor of Criminology and Justice Studies, UMass Lowell

The fatal shooting of prominent conservative activist Charlie Kirk on Sept. 10, 2025, has brought renewed attention to the climate of political violence in America. Kirk’s death reflects a sizable increase in threats against officeholders and politicians at the local and federal level.

Alfonso Serrano, a politics editor at The Conversation, spoke with University of Massachusetts Lowell scholar Arie Perliger after Kirk’s shooting. Perliger studies political violence and assassinations and spoke bluntly about political polarization in the United States.

Serrano: What were your initial thoughts after Charlie Kirk’s fatal shooting?

Perliger: It was a bit unusual that the attack was not against an elected official. Rarely have we seen political assassinations that are aimed at the nonprofit political landscape. Usually those people are not deemed important enough.

Secondly, and it’s something I see a lot in my research, political assassinations come in waves. We see that not only in the United States but other countries. I’ve looked at political assassinations in many democracies, and one of the things I see in a fairly consistent manner is that political assassinations create a process of escalation that encourages others on the extreme political spectrum to feel the need to retaliate. And that is my main concern. That this process creates legitimization and acceptance, that it provides the sense that this is an acceptable form of political action. This will not end here.

In 2024, there were two attempts to assassinate Donald Trump. Then, in early 2025, the residence of Gov. Josh Shapiro in Pennsylvania was firebombed on Passover, and within months the U.S. witnessed the killing of Minnesota state lawmaker Melissa Hortman and her husband, among other acts of political violence. The U.S., of course, is not immune to political violence, as we saw in the 1960s. But what stands out about this latest wave?

The data shows that there’s a substantial increase in the level of threats against officeholders at the local and federal level. What’s different now is we see an increased support in political violence from both sides of the political spectrum. Consistently, almost a quarter of the public is willing to support political violence in some form, or see that as a legitimate form of political action.

And as we see an increased political polarization, and the increased demonization of political rivals, we see the decline and disappearance of political discourse and policymaking. The bipartisan political process in Congress in the past few years has been almost nonexistent. And that spills over to the public, where the other (political) side is seen as a one-dimensional figure that is a threat.

We’ve had political polarization in the U.S. in the past, but usually it was around a specific issue like civil rights in the 1960s and the Vietnam War. But this time there is no specific issue that we can say, “If we solve this, we solve the political polarization.” The problem is that there’s no space for convergence from both sides where they can work together, so there’s no bridges they can rely on to come together.

Does it strike you that Kirk’s assassination occurred on a college campus? It seems as if college campuses have become a flash point of violence in the U.S.

Campuses are becoming more and more contentious spaces. They were always intellectual hubs where political views were debated intensively. Activism was always part of campus life. But what we’ve seen in the past year is that campus life has become in some cases more violent. And the fact that Kirk was killed on a campus is, I think, heartbreaking because campuses symbolize a place where you can engage in political debate in a way that encourages intellectual exploration.

What’s happened in the past year is that campuses are not those spaces anymore. Yes, we still see political activism, but it’s the activism that doesn’t leave any room for actual debate. It’s just two sides that are completely hostile to each other and unwilling to hear each other.

Trump on Wednesday night blamed the media and the “radical left” for language used to describe people like Kirk. He said this rhetoric is “responsible for the terrorism that we’re seeing in our country today.” Any thoughts?

I agree that language and rhetoric impact people’s behavior. I’ve seen that again and again in my studies, that the discourse of political figures impacts the way people think of the legitimacy of violence. Of course, we need to understand the context here, which is that Trump himself was willing to pardon thousands of people who engaged in political violence.

So, on the one hand, I agree with him that political leaders should be responsible for how they discuss political issues. It’s important for them to convey that political discourse can be constructive. However, we need to acknowledge that our own government, in many cases, sends signals that provide encouragement and support that legitimize violence. I think it’s important for politicians on both sides to be consistent in understanding that the way they discuss their political rivals is important.

You’re an expert on the history of political assassinations. How do countries untangle themselves from waves of political violence?

Political leaders need to insist on working together. There are lots of policy areas where politicians can work together. When we see that people can work together within the political system, that sends an important message, that there is a space where we can work together. The second thing is trying to think about how the U.S. can restructure part of the political process to ensure that there is a real competition of ideas, to incentivize a constructive, productive approach that will legitimize those who are willing to engage in constructive policymaking.

Any last thoughts?

As part of my work, I track the most extremist online social media accounts, and what we see right now is a strong sense that this assassination is being celebrated by parts of the left. And that has created an escalation of language from those in the extreme right social media ecosystem. There is much more willingness to discuss issues of retaliation, an actual civil war.

And that’s my biggest worry. If you look at social media, what we see is that both sides embrace this kind of rhetoric that really concerns me. More than ever, I’ve seen calls for retaliation and a strong sense that the other side is unwilling to show any sympathy to what happened. Emotions are running very high, and I’m very worried about what may happen in the next few weeks.

Arie Perliger does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. ‘This will not end here’: A scholar explains why Charlie Kirk’s killing could embolden political violence – https://theconversation.com/this-will-not-end-here-a-scholar-explains-why-charlie-kirks-killing-could-embolden-political-violence-265060