Well, I think those who seriously consider resorting to this kind of weapon, no matter what the reason is, are insane and very dangerous folks, and it's only for that alone they deserve being taken down.
From WWII nuclear weapon is used in diplomacy rather than in war. And it is perfectly effective.
I don't judge who deserves what and seriously consider what. I said that after fall of USSR foreign policy of USA is the main reason of spreading nukes. Am I wrong?