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In a Jeopardy-style game at the annual Def Con hacking convention in Las Vegas, hackers tried to get chatbots from OpenAI, Google and Meta to create misinformation and share harmful content.

Hidden -- though not effectively -- in a lawsuit against Tiktok, there are accusations that company executives have deceived the public about the social media app's effects on young people.

“The country is pretty divided. Things like this bring everybody together. There is no division on it.”

Intelligence officials and lawmakers describe the Chinese-owned social media app as a national security threat. But they haven't shared that evidence with the public.

Officer Christopher Manney was attempting to frisk Dontre Hamilton. After Hamilton grabbed the officer's baton, Manney shot him 14 times.

John Urschel is an offensive linesman for the Baltimore Ravens, and he's also a published mathematician. He talks to David Greene about his love of math and why he plays in the NFL.

Amid news that Russian operatives may have bought ads to fuel social and racial unrest, NPR's Michel Martin speaks with Scott Tranter, a director of analytics for a data and technology firm.

The case is the latest in a string of recent arrests and investigations related to attempted far-right infiltration of the U.S. military, prompting calls for more thorough screenings of enlistees.

A year after sexual assault allegations against Harvey Weinstein catapulted #MeToo into a national movement in the U.S., women in India are using Facebook and Twitter to tell their stories.

An American has been confirmed as one of at least 14 people killed. More than 100 others were injured. In all, victims came from at least 34 nations. Here's a portrait of the lives lost.