Is TikTok a national security time bomb?

Biden and Trump, though old, are both likely to survive to the end of the next president’s term, demographers explain

Dudley L. Poston Jr., Texas A&M University; Rogelio Sáenz, The University of Texas at San Antonio

Detailed data on the ages at which people die can give good indications of a person’s remaining life span.

Why Fani Willis was allowed to stay on as prosecutor of criminal case against Trump in Georgia – and what happens next

Ronald S. Sullivan Jr., Harvard University

Though a Georgia judge strongly criticized the decision-making of Fani Willis, he did not kick her off the case against Donald Trump and his efforts to overthrow the 2020 presidential election.

Free school meals for all may reduce childhood obesity, while easing financial and logistical burdens for families and schools

Anna Localio, University of Washington; Jessica Jones-Smith, University of Washington

Since nutrition standards were strengthened in 2010, eating at school provides many students better diet quality compared with other major U.S. food sources.

Children experience more injuries, stress and even burnout when they specialize in one sport

Nirav Pandya, University of California, San Francisco

The rate of injury for single-sport adolescents is far higher than for other kids who play a variety of sports.

Amid growth in AI writing tools, this course teaches future lawyers and other professionals to become better editors

Patrick Barry, University of Michigan

Learning how to produce polished prose can greatly enhance your value on the job.

How do airplanes fly? An aerospace engineer explains the physics of flight

Craig Merrett, Clarkson University

People have been flying airplanes for well over a century. Engineers know how to balance all the forces at play, but still aren’t exactly sure how some of the physics of flight actually works.

AI vs. elections: 4 essential reads about the threat of high-tech deception in politics

Eric Smalley, The Conversation

Using disinformation to sway elections is nothing new. Powerful new AI tools, however, threaten to give the deceptions unprecedented reach.

As the US government and record labels go after TikTok, musicians get the squeeze

Ediz Ozelkan, University of Colorado Boulder

For some musical artists, TikTok has become a beacon in an otherwise dismal digital streaming landscape.

Ukraine war: ten years after Putin annexed Crimea, Russia’s grip on the peninsula looks shaky

Stefan Wolff, University of Birmingham

While Ukraine’s fortunes on the battlefield have been mixed, its operations in Crimea and the Black Sea have been rather more successful.

Trump wouldn’t be the first presidential candidate to campaign from a prison cell

Leprosy cases are rising in the US – what is the ancient disease and why is it spreading now?

COVID-19 vaccines: CDC says people ages 65 and up should get a shot this spring – a geriatrician explains why it’s vitally important