Nuclear

The end of nonproliferation?

The United States' rejection of security commitments could lead to a spike in nuclear-armed states.

Experts fear cascade of nuclear proliferation as Trump shakes alliances

U.S. allies contemplate the once-unthinkable: building their own nuclear arsenals.

Trump administration fires hundreds of nuclear-security employees, sources say

The National Nuclear Security Administration maintains the nuclear stockpile, counters terrorism, disposes of dangerous nuclear material, among other missions.

Air Force has halted work on parts of its ICBM program

Work on the Sentinel command and launch segment is on hold due to “evolving” requirements, officials say.

Why Ukrainian soldiers came to Idaho to study nuclear forensics

Hint: It’s an essential element of U.S. deterrence strategy.

Russian nuclear doctrine change does not indicate imminent attack, Pentagon says

While the Kremlin’s broadening of nuclear posture seems alarming, experts say future escalation could take a different path.