An outgoing Biden administration official overseeing nukes warned against a new arms race with Russia and China in her farewell address Thursday.

A group of journalists were allowed to tour a weapons laboratory deep underground in Frenchman Flat, Nevada. NPR's science correspondent Geoff Brumfiel was among them.

The effort was part of outgoing NNSA administrator Jill Hruby's effort to display more transparency about what the U.S. is ...

Answering an audience question at the Hudson Institute, Jill Hruby said, “just building a lot of weapons over the long run does not seem like a winning strategy” for deterrence. She added ...

"The new B61-12 gravity bombs are fully forward deployed," said Jill Hruby, administrator for the National Nuclear Security Administration.

The Doomsday Clock may have just moved forward by a few seconds as the looming threat of a nuclear war between the United and Russia escalated by several notches after Washington recently deployed the ...

Jill Hruby, head of the National Nuclear Security Administration, said the U.S. cannot build more nuclear weapons than Russia and China (and its "gigantic economy") in the decades to come ...