CMRR-NF: Delay Makes Sense - Union of Concerned Scientists

W88 warhead program performs successful tests

In modern thermonuclear warhead like the W-88, can 1kt primary ignite 1 ton of fissile material in the secondary stage? - Quora

How US nuclear force modernization is undermining strategic stability: The burst-height compensating super-fuze - Bulletin of the Atomic Scientists

Quality of replacement triggers for nuclear warheads questioned, National

Reliability of nuke triggers questioned – The Denver Post

Maps Show Biden's New Nuclear Bomb Compared to Most Powerful US Weapons

What is the W93 warhead? - Quora

Full article: Nuclear Sky: The Atmosphere and the World's Most Powerful Weapons

A New Nuclear Warhead? STRATCOM Chief Can't Answer Yes or No - Defense One

W76 - Wikipedia