[The] dilemma had long ago been accurately defined by a wise general: Israel's nuclear armory is unusable. It can only be used too early or too late. There will never be a "right" time. Use it "too early," meaning before Iran acquires similar weapons, and Israel will be cast in the role of international pariah, a target of universal Muslim assault, without a friend in the world; "too late" means after the Iranians have struck. What purpose would that serve?
So Israel's leaders will grit their teeth and hope that somehow things will turn out for the best. Perhaps, after acquiring the Bomb, the Iranians will behave "rationally"?
But the Iranians are driven by a higher logic. And they will launch their rockets. And, as with the first Holocaust, the international community will do nothing. It will all be over, for Israel, in a few minutes - not like in the 1940s, when the world had five long years in which to wring its hands and do nothing. After the Shihabs fall, the world will send rescue ships and medical aid for the lightly charred. It will not nuke Iran. For what purpose and at what cost? An American nuclear response would lastingly alienate the whole Muslim world, deepening and universalizing the ongoing clash of civilizations. And, of course, it would not bring Israel back. (Would hanging a serial murderer bring back his victims?)
So what would be the point?