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Cambodia’s haunted present: 50 years after Khmer Rouge’s rise, murderous legacy looms large

  • Written by Sophal Ear, Associate Professor in the Thunderbird School of Global Management, Arizona State University
imageKhmer Rouge forces collect weapons left behind by retreating soldiers as they enter Phnom Penh on April 17, 1975.Roland Neveu/LightRocket via Getty Images

On April 17, 1975, tanks rolled into the Cambodian capital, Phnom Penh, to cheering crowds who believed that the country’s long civil war might finally be over.

But what followed was one of...

Read more: Cambodia’s haunted present: 50 years after Khmer Rouge’s rise, murderous legacy looms large

Social Security’s trust fund could run out of money sooner than expected due to changes in taxes and benefits

  • Written by Dennis W. Jansen, Professor of Economics and Director of the Private Enterprise Research Center, Texas A&M University
imageA closed entrance to the Social Security Administration headquarters sits empty in Woodlawn, Md., on March 20, 2025. Wesley Lapointe/The Washington Post via Getty Images

Social Security is one of the federal government’s biggest programs.

Roughly 67 million Americans, most of whom are 65 or older, received Social Security benefits in 2023. An...

Read more: Social Security’s trust fund could run out of money sooner than expected due to changes in taxes...

401(k) plans and stock market volatility: What you need to know

  • Written by Dr. Ronald Premuroso, Accounting Instructor, Western Governors University School of Business
imageIt's been a wild ride.iStock/Getty Images Plus

With stock market charts resembling the contours of a roller-coaster ride in recent days, many Americans could be forgiven for eyeing their 401(k)s with a little concern.

Retirement savings are crucial to the financial well-being of millions of especially older people in the U.S., so the concern is...

Read more: 401(k) plans and stock market volatility: What you need to know

Perceived consensus drives moral intolerance in a time of identity-driven politics and online bubbles

  • Written by Jen Cole Wright, Professor of Psychology, College of Charleston
imageDifferences of opinion within your group signal for you to be tolerant around that issue.OsakaWayne Studios/Moment via Getty Images

To live together in social communities, people create and maintain expectations about what is normal and what is not. Sometimes things can fall outside the range of normal and people are OK with it. You might have a...

Read more: Perceived consensus drives moral intolerance in a time of identity-driven politics and online...

Getting AIs working toward human goals − study shows how to measure misalignment

  • Written by Aidan Kierans, Ph.D. Student in Computer Science and Engineering, University of Connecticut
imageSelf-driving cars are only one example where it's tricky but critical to align AI and human goals.AP Photo/Michael Liedtke

Ideally, artificial intelligence agents aim to help humans, but what does that mean when humans want conflicting things? My colleagues and I have come up with a way to measure the alignment of the goals of a group of humans and...

Read more: Getting AIs working toward human goals − study shows how to measure misalignment

Same-sex marriage is under attack by state lawmakers, emboldened by Trump’s anti-LGBTQ+ measures and the Supreme Court’s willingness to overturn precedent

  • Written by Paul M. Collins Jr., Professor of Legal Studies and Political Science, UMass Amherst
imageJeff Sralla, left, and his partner of 28 years, Gerald Gafford, wed in 2015 in Texas.AP Photo/Eric Gay

Same-sex marriage, which the U.S. Supreme Court in 2015 legalized nationwide in the case known as Obergefell v. Hodges, is facing resurgent hostility.

In the decade since the court’s decision, public support for same-sex marriage has increase...

Read more: Same-sex marriage is under attack by state lawmakers, emboldened by Trump’s anti-LGBTQ+ measures...

Are twins allergic to the same things?

  • Written by Breanne Hayes Haney, Allergy and Immunology Fellow-in-Training, School of Medicine, West Virginia University
imageIf one has a reaction to a new food, is the other more likely to as well?BjelicaS/iStock via Getty Images Plus

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

Are twins allergic to the same things? – Ella, age 7, Philadelphia

Allergies,...

Read more: Are twins allergic to the same things?

How and where is nuclear waste stored in the US?

  • Written by Gerald Frankel, Distinguished Professor of Materials Science and Engineering, The Ohio State University
imageA Southern California Edison employee measures radiation at the San Onofre Nuclear Generating Station on March 10, 2020.Paul Bersebach/MediaNews Group/Orange County Register via Getty Images

Around the U.S., about 90,000 tons of nuclear waste is stored at over 100 sites in 39 states, in a range of different structures and containers.

For decades,...

Read more: How and where is nuclear waste stored in the US?

ICE has broad power to detain and arrest noncitizens – but is still bound by constitutional limits

  • Written by Rose Cuison-Villazor, Professor of Law and Chancellor's Social Justice Scholar, Rutgers University - Newark
imageU.S. Immigration and Customs Enforcement officers restrain a detained person on Jan. 27, 2025, in Silver Spring, Md.Associated Press

News reports of noncitizens unexpectedly being detained by Immigration and Customs Enforcement, or ICE, have dominated headlines in recent weeks. Those being detained include noncitizens who hold lawful permanent...

Read more: ICE has broad power to detain and arrest noncitizens – but is still bound by constitutional limits

How the CDC’s Epidemic Intelligence Service protects public health at home and abroad

  • Written by Mark Dworkin, Professor of Epidemiology, University of Illinois Chicago
imageThe Epidemic Intelligence Service has produced a cadre of highly trained public health experts over its 74-year history.peterhowell/iStock / Getty Images Plus via Getty Images

When the Trump administration announced in February 2025 that it was cutting 10% of staff at the Centers for Disease Control and Prevention, it seemed that a small but...

Read more: How the CDC’s Epidemic Intelligence Service protects public health at home and abroad

More Articles ...

  1. Utilities choosing coal, solar, nuclear or other power sources have a lot to consider, beyond just cost
  2. Pennsylvania may be short 20,000 nurses by 2026
  3. In trade war with the US, China holds a lot more cards than Trump may think − in fact, it might have a winning hand
  4. Companies will still face pressure to manage for climate change, even as government rolls back US climate policy
  5. Pikachu protesters, Studio Ghibli memes and the subversive power of cuteness
  6. Citizenship voting requirement in SAVE Act has no basis in the Constitution – and ignores precedent that only states decide who gets to vote
  7. AI-generated images can exploit how your mind works − here’s why they fool you and how to spot them
  8. Tiny cut marks on animal bone fossils reveal that human ancestors were in Romania 1.95 million years ago
  9. A Roman governor ordered Jesus’ crucifixion – so why did many Christians blame Jews for centuries?
  10. White House plans for Alaskan oil and gas face some hurdles – including from Trump and the petroleum industry
  11. Pornography may be commonplace, but a growing body of research shows it causes lasting harm to the brain and relationships
  12. ICE can now enter K-12 schools − here’s what educators should know about student rights and privacy
  13. What the Supreme Court’s ruling on man wrongly deported to El Salvador says about presidential authority and the rule of law
  14. Cancer hijacks your brain and steals your motivation − new research in mice reveals how, offering potential avenues for treatment
  15. Tax Day highlights the costs of single living – but demographics are forcing financial change
  16. Fill-in-the-blank training primes AI to interpret health data from smartwatches and fitness trackers
  17. Race isn’t a ‘biological reality,’ contrary to recent political claims − here’s how scientific consensus on race developed in the 20th century
  18. Trump’s nomination for NASA leader boasts business and commercial spaceflight experience during a period of uncertainty for the agency
  19. Schools are harnessing artificial intelligence to revolutionize courses in hospitality management
  20. Black Americans are more likely than other racial groups to express their faith in the workplace
  21. China’s new underwater tool cuts deep, exposing vulnerability of vital network of subsea cables
  22. Will Africa’s young voters continue to punish incumbents at the ballot box in 2025? We are about to find out
  23. Universities in Nazi Germany and the Soviet Union thought giving in to government demands would save their independence
  24. Supreme Court’s decision on deportations gave both the Trump administration and ACLU reasons to claim a victory − but noncitizens clearly lost
  25. Why you should think twice before using shorthand like ‘thx’ and ‘k’ in your texts
  26. Colorado’s early childhood education workers face burnout and health disparities, but a wellness campaign could help
  27. Americans die earlier at all wealth levels, even if wealth buys more years of life in the US than in Europe
  28. What would happen if Section 230 went away? A legal expert explains the consequences of repealing ‘the law that built the internet’
  29. Shark AI uses fossil shark teeth to get middle school kids interested in paleontology and computer vision
  30. Two key ingredients cause extreme storms with destructive flooding – why these downpours are happening more often
  31. Why some storms brew up to extreme dimensions in the middle of America – and why it’s happening more often
  32. Cities that want to attract business might want to focus less on financial incentives and more on making people feel safe
  33. The founder kings of Silicon Valley: Dual-class stock gives US social media company controllers nearly as much power as ByteDance has over TikTok
  34. Social media before bedtime wreaks havoc on our sleep − a sleep researcher explains why screens alone aren’t the main culprit
  35. How racism fueled the Eaton Fire’s destruction in Altadena − a scholar explains why discrimination can raise fire risk for Black Californians
  36. Providing farmworkers with health insurance is worth it for their employers − new research
  37. Peru’s ancient irrigation systems succeeded in turning deserts into farms because of the culture − without it, the systems failed
  38. The ‘courage to be’ in uncertain times − how one 20th-century philosopher defined bravery
  39. AI isn’t what we should be worried about – it’s the humans controlling it
  40. What is reinforcement learning? An AI researcher explains a key method of teaching machines – and how it relates to training your dog
  41. American liberators of Nazi camps got ‘a lifelong vaccine against extremism’ − their wartime experiences are a warning for today
  42. EPA must use the best available science − by law − but what does that mean?
  43. The trade deficit isn’t an emergency – it’s a sign of America’s strength
  44. Alcohol causes cancer, and less than 1 drink can increase your risk − a cancer biologist explains how
  45. Animal tranquilizers found in illegal opioids may suppress the lifesaving medication naloxone − and cause more overdose deaths
  46. Housing instability complicates end-of-life care for aging unhoused populations
  47. How the small autonomous region of Puntland found success in battling Islamic State in Somalia
  48. What ancient animal fables from India teach about political wisdom
  49. Hip-hop can document life in America more reliably than history books
  50. The hidden power of marathon Senate speeches: What history tells us about Cory Booker’s 25-hour oration