Add Yahoo as a preferred source to see more of our stories on Google. A mushroom cloud rises from a test blast at the Nevada Test Site on June 24, 1957. | U.S. Energy Department via AP President ...

President Donald Trump has announced the US will start testing nuclear weapons in what could be a radical shift in his nation's policy. "Because of other countries testing programs, I have instructed ...

President Donald Trump has ignited a firestorm of controversy and confusion with his announcement that the United States will begin nuclear weapons testing. It's unclear whether he was referring to ...

VIENNA (AP) — The United States and Russia have both recently threatened to resume nuclear testing, alarming the international community and jeopardizing a global norm against such tests. Experts say ...

Add Yahoo as a preferred source to see more of our stories on Google. An unarmed Trident II D5 missile launches from an Ohio-class ballistic missile submarine off the coast of Florida. The four ...

Should the U.S. and Russia resume nuclear testing? The answer to that question must be a resounding “No.” Yet President Donald Trump and Russian leader Vladimir Putin, eager to project strength, have ...

While on his way to meet with Chinese President Xi Jinping for trade negotiations, U.S. President Donald Trump posted a short statement on Oct. 29 that appeared to suggest the United States would ...

Energy Secretary Chris Wright said the testing ordered up in a surprise announcement by President Trump last week would focus on “the other parts” of nuclear weaponry. By Zolan Kanno-Youngs The ...

President Donald Trump’s call for the United States to resume testing of nuclear weapons last week has experts scratching their heads. What did he really mean – exploding a warhead or testing delivery ...

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.