Nuclear weapons are terror weapons, and basically unusable.
That's one reason why no rational strategy, other than deterrence, has ever been developed to justify them. Events in the past week and a half make my case.
Recently the British government — in the midst of an austerity program that includes cutting education, health and retirement programs — announced contract awards of $595 million to begin design of replacements for its four nuclear submarines that carry Trident sub-launched ballistic missiles.