Easier than a blood test, saliva tests have the potential to detect cavities, infections and even cancer. But a lack of insurance coverage and other obstacles stand in the way of wider use.

Two years ago, the successful union drive at this plant was expected to spark victories throughout the South. But now, as members vote to make their contract official, momentum has fizzled.

In a slow-motion race of two retail behemoths, Amazon's trump card was its lucrative cloud-computing business.

Andrew Mountbatten-Windsor, the British former prince, was released after spending the day in police custody but is still under investigation on suspicion of misconduct in public office.

Most Olympians never win big money — or big fame. So how are athletes such as Eileen Gu or Chloe Kim able to earn millions of dollars? Here are some of the ways.

The billionaire tech mogul's testimony was part of a landmark social media addiction trial in Los Angeles. The jury's verdict in the case could shape how some 1,600 other pending cases from families and school districts are resolved.

The Food and Drug Administration's about-face comes a little more than a week after the agency refused to consider the company's application to market the new kind of influenza vaccine.

The case is seen as a test of social media's legal responsibility for platform design features that plaintiffs' lawyers say exacerbated mental health issues in young people.

As CBS's parent company makes a final play for Warner Bros. Discovery, CBS faces scrutiny over claims it blocked a Stephen Colbert interview while Anderson Cooper stepped down from 60 Minutes.

Cocaine has made a roaring comeback, and it's having some big negative effects in the U.S. and around the world.