The Federation of American Scientists revealed in late January that the U.S. Navy had deployed for the first time a submarine armed with a low-yield Trident nuclear warhead. The USS Tennessee deployed from Kings Bay Submarine Base in Georgia in late 2019. The W76-2 warhead, which is facing criticism at home and abroad, is estimated to have about a third of the explosive power of the atomic bomb the U.S. dropped on Hiroshima. The International Campaign to Abolish Nuclear Weapons (ICAN) called the news “an alarming development that heightens the risk of nuclear war.”

Last month, the National Nuclear Security Administration (formerly the Atomic Energy Commission) announced that the first of a new generation of strategic nuclear weapons had rolled off the assembly line at its Pantex nuclear weapons plant in the panhandle of Texas. That warhead, the W76-2, is designed to be fitted to a submarine-launched Trident missile, a weapon with a range of more than 7,500 miles. By September, an undisclosed number of warheads will be delivered to the Navy for deployment.