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Michael Flynn stepped down as national security adviser following reports he communicated with Russia about U.S. sanctions in December and then misled the vice president-elect about that discussion.

NPR's Mary Louise Kelly talks with Pentagon correspondent Tom Bowman and Fred Kagan of the Critical Threats Project at the American Enterprise Institute about U.S. intelligence in the war in Ukraine.

Scientists have decoded streams of words in the brain using artificial intelligence and the data from MRI scans.

NPR's Ari Shapiro speaks with House Intelligence Committee Chairman Adam Schiff about Thursday's hearing about a whistleblower complaint related to President Trump's call with Ukraine's leader.

Can Congress keep up with the pace of growth in artificial intelligence? Paul Scharre of the Center for a New American Security talks about the current attempts to regulate A.I.

NPR's Ayesha Rascoe speaks with U.S. FDA Commissioner Robert Califf about the agency's process for regulating artificial intelligence in healthcare.

The president says he was never briefed on intelligence, first reported by The New York Times, showing Russia had offered bounties to Taliban-linked militants to kill Western forces in Afghanistan.

Senate Majority Leader Chuck Schumer is trying to lead an effort to craft groundbreaking legislation to install safeguards around artificial intelligence. But lawmakers have a lot to learn.

The chip designer Nvidia is now worth more than Amazon, Meta and Alphabet. New Yorker contributor Stephen Witt talks about how Nvidia cornered the market for the chips fueling artificial intelligence.

Why are U.S. tech investors so worried about DeepSeek, the Chinese artificial intelligence company whose new chatbot is now among the most-downloaded free apps in the U.S.?