A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...
The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.
Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald Trump vows to restart U.S. tests.
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On Oct. 30, 2025, President Donald Trump ordered the United States to resume nuclear weapons testing for the first time since the early 1990s, arguing the move was necessary to keep pace with Russia ...