Atomic scientists set the "Doomsday Clock" closer than ever to midnight, citing aggressive behavior by nuclear powers Russia, China and the U.S., fraying nuclear arms control, global conflicts and AI worries. https://www.japantimes.co.jp/news/2026/01/28/world/doomsday-clock-midnight/?utm_medium=Social&utm_source=mastodon #worldnews #nuclearweapons #iran #israel #russia #china #ai #russiaukrainewar #us