This article is as thoughtful as it is scarey.

"MAD, mutual assured destruction, [was effective] right through the cold war. Both sides had nuclear weapons. Neither side used them, because both sides knew the other would retaliate in kind. This will not work with a religious fanatic [like Ahmadinejad]. For him, mutual assured destruction is not a deterrent, it is an inducement. We know already that [Iran's leaders] do not give a damn about killing their own people in great numbers. We have seen it again and again. In the final scenario, and this applies all the more strongly if they kill large numbers of their own people, they are doing them a favor. They are giving them a quick free pass to heaven and all its delights. Nor are they inhibited by a love of country:
We do not worship Iran, we worship Allah. For patriotism is another name for paganism. I say let this land [Iran] burn. I say let this land go up in smoke, provided Islam emerges triumphant in the rest of the world."