
Accelerating upgrades for the nuclear warhead slated to fly in the next decade on a new air-launched cruise missile would consume the single largest portion of the budget increase proposed for National Nuclear Security Administration (NNSA) nuclear weapons programs in 2019, according to a detailed budget document released Friday.For fiscal 2019, the semiautonomous Department of Energy nuclear-weapon agency requested more than $650 million for its W80-4 life-extension program: quadruple what the program receives on an annualized basis under the fifth…