If it weren't for all the idiots in the world that don't care about Mutually Assured Destruction, that might not be a bad idea. MAD keeps countries at peace, or, at least there is something to say for it.

I'm not sure MAD is really the way to world peace, but the idea that owning nuclear weapons is inherently bad for any government in the world... I'm not sure how right that is, either. If you are sure that you will be destroyed as soon as you attack, no matter whether you attack first, there is suddenly a lot less incentive to attack.