WEST PALM BEACH, Fla. (AP) — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was the first clarity from the Trump administration since ...

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the nation's foremost experts. But questions about what kind of ...

Hours before meeting President Xi Jinping of China on Thursday, President Trump made a confounding proclamation: He wanted the Pentagon to “start testing our nuclear weapons on an equal basis” with Russia and China. Why was the statement so puzzling?

The Kremlin says Russian and U.S. negotiators have discussed the expiration of their last remaining nuclear arms pact