Atomic 'Doomsday Clock' ticks closer than ever to midnight

Atomic scientists set their "Doomsday Clock" on Tuesday (January 27) closer than ever to midnight, citing aggressive behavior by nuclear powers Russia, China and the United States, fraying nuclear arms control, conflicts in Ukraine and the Middle East, and AI worries among factors driving risks for global disaster. "The Doomsday Clock is now at 85 seconds to midnight, the closest it has been in the history of the clock," Bulletin Science and Security Board Chair Daniel Holz said.