Nuclear weapons testing has affected every single human on the planet, causing at least four million premature deaths from ...

(CNN) — US President Donald Trump and Russian President Vladimir Putin have spent weeks trading threats to restart nuclear tests, an escalation kicked off by Putin’s boasts about tests of the Poseidon ...

Russia's Vladimir Putin ordered top officials on Wednesday to submit plans for the possible resumption of nuclear testing, a direct response to President Donald Trump's surprise instruction for the ...

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 ...