Submarine Matters: China stole US W88 thermonuclear warhead secrets in 1990s

China: Suspected Acquisition of U.S. Nuclear Weapon Secrets

China's Submarines May Be Catching Up With U.S. Navy

Chinese government hackers reportedly stole trove of sensitive US naval data, China

What is the difference between a nuclear warhead and a nuclear missile? Why would a nuclear submarine carry eight missiles and 40 warheads? - Quora

First Picture Of China's Secretive New Submarine

War Law-In-Action

What is the likelihood one or more countries will pre-position nuclear warheads in space? - Quora

Rotten US nuclear warheads

H I Sutton - Covert Shores

US nuclear-powered submarine hits submerged object in South China Sea, US military