A senior United States official on Tuesday disclosed further details about a covert nuclear-related test allegedly carried out by China while stressing the U.S. cannot afford not to resume testing to ...

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

Add Yahoo as a preferred source to see more of our stories on Google. President Donald Trump’s calls to ramp up nuclear weapons testing last week have put nuclear watchdogs and world leaders on alert ...

WASHINGTON — Democratic senators representing states that bore the brunt of the fallout from explosive nuclear weapons testing are seeking to pass legislation that would bar President Donald Trump ...

Add Yahoo as a preferred source to see more of our stories on Google. U.S. Senator Edward Markey (D-MA) alongside Senate Democrats speaks during a press conference addressing a new policy that demands ...

President Trump and one of his top cabinet officials are sending mixed messages on how the U.S. government is handling the most destructive weapons in the world. By David E. Sanger and Zolan ...

Late last week, the U.S. leveled an explosive claim: China is planning secret nuclear weapons tests and has already conducted at least one. China denied the allegations, but experts are worried that ...

Nov. 6 (UPI) --President Donald Trump's calls to ramp up nuclear weapons testing last week have put nuclear watchdogs and world leaders on alert while experts say the United States has little to gain.