The warplane-dropped nuclear gravity bomb known as the B61 has been fully modernized with a new precision guidance system, the Energy Department’s National Nuclear Security Administration ...

When the energy secretary’s background is in domestic energy ... production and testing of nuclear weapons. It is responsible for storing and securing warheads that are not deployed at military ...

Pentagon officials estimate that China, which has no treaty restrictions on its nuclear warhead numbers, has more than 600 nukes today and will expand their arsenal to 1,000 or more by 2030.

that production of the most recent American tactical nuclear weapon, the B61-12, has been completed. The Last Production Unit (LPU) of the B61-12 Life Extension Program (LEP) was completed on Dec ...

Although experts believe North Korea has approximately 50 nuclear warheads in its arsenal, the former Fox & Friends host's remarks crossed a delicate diplomatic line. John Kirby, spokesperson for ...