Last year, President Donald Trump shocked many people when he instructed the government to resume nuclear testing “on an ...

Coordinated U.S. and Israeli strikes on Iranian targets on February 28 have created a familiar but still dangerous pattern for homeland security leaders.

A mysterious spike in seismic activity has been detected near secret US nuclear weapons testing facilities. At least 127 earthquakes have been recorded in the region.

GENEVA (AP) — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago and urged countries to ...

FILE - Christopher Yeaw, center, arrives to a Senate Foreign Relations Committee confirmation hearing on his nomination to be an assistant Secretary of State, Nov. 19, 2025, on Capitol Hill in ...