President Donald Trump ordered the Department of War to resume testing nuclear weapons “on an equal basis” with Russia and China on Thursday, a practice halted by the U.S. in 1992. The announcement ...

Resuming full testing of nuclear weapons — as President Donald Trump called for last week — would be unnecessary, costly, undermine nonproliferation efforts, and empower the nation’s adversaries to ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the ...

Donald Trump has repeatedly called the proliferation of nuclear weapons “the n-word,” his way of warning that speaking “nuclear” into existence puts the world on the path of mutually assured ...