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The winner of the 2021 Regeneron Science Talent Search is 18-year old Yunseo Choi for playing theoretical "matchmaker" using algorithms. She won $250,000.

John Kerry, who has led the Biden administration's international climate efforts, is leaving his role. He's been central to Biden's efforts to establish the U.S. as an international climate leader.

Israel's surprise attack in Qatar on Tuesday targeting Hamas' top political leaders was the latest in a campaign aimed at hunting down Israel's top enemies since the 2023 Hamas-led attack on Israel.

Preparations continue for a summit between President Trump and Kim Jong Un. David Greene talks to Sue Mi Terry, an ex-senior analyst on Korean issues at the CIA, about the North Korean official.

Abby Grossberg says she was misled by Fox lawyers who prepared her to testify in the defamation lawsuit. Fox News says she's revealed confidential information and has sued her.

Two police officers who helped defend the U.S. Capitol during the Jan. 6 riot are suing to block anyone from receiving payouts from a new settlement fund.

Donald Trump is appealing the ruling that would release documents from his administration, while the committee is trying to wrap up its work by next year.

Top leaders from the Justice Department, the FBI and the intelligence community met at the White House amid a new dust-up about the FBI's use of confidential informants.

The decline of Earth's insect population may have serious consequences for humans, says scientist Anne Sverdrup-Thygeson. Insects are the world's janitors, as well as pollinators and a food source.

Internal Facebook documents show how the pro-Trump Stop the Steal movement proliferated on the world's biggest social network between the presidential election and the Jan. 6 insurrection.