Add Yahoo as a preferred source to see more of our stories on Google. The State Department’s allegation that China conducted a yield-producing nuclear test in 2020 is reigniting debate in Washington ...

The State Department’s allegation that China conducted a yield-producing nuclear test in 2020 is reigniting debate in Washington over whether the United States can continue its decades-long moratorium ...

The U.S. government has released fresh intelligence on what it claims was an illicit Chinese nuclear test conducted in 2020. On June 22 of that year, a remote seismic station in Kazakhstan detected a ...

The U.S. has accused China of planning nuclear tests and conducting at least one secret test in 2020. Experts worry it could lead to more nuclear testing in the future. NPR's Geoff Brumfiel reports.

On February 6, the United States Undersecretary for Arms Control and International Security Thomas DiNanno accused China of conducting nuclear weapons tests that achieved supercritical yields, ...

A senior U.S. official offered new details Tuesday night about an alleged nuclear bomb test conducted by China in June 2020. Assistant Secretary of State Christopher Yeaw spoke at a Hudson Institute ...

Editor's note: Este artículo está traducido al español. Warning at an appearance in Las Vegas that the world is “less safe” without a binding nuclear pact, two key House Democrats are pressing ...

WASHINGTON — A senior U.S. official on Tuesday revealed what he said were new details of an underground nuclear test blast that China allegedly conducted in June 2020. Assistant Secretary of State ...

A top Trump administration official on Tuesday disclosed new details to support its claim that China conducted an underground nuclear explosion during Donald Trump’s first presidency, a contested ...

The US has shaken a disarmament conference by charging that China carried out at least one clandestine nuclear explosive test—on June 22, 2020—and is preparing others with yields in the "hundreds of ...