Danny Gordis is very worried about the looming Iranian nuclear threat, and explains why he expects Israel will attack unless the Americans do. Not because Iran will try to bomb Israel, but because the very ability to make the threat will send us back to pre-Zionist powerlessness which will cause Israel to crumble.
I hope lots of people read the article, and take it seriously.
Alas, for what it's worth, I disagree. I don't see millions of Israelis, or even tens of thousands of the brightest and bestest streaming out of Israel to plushy jobs in America merely because the Iranians have nuclear weapons. I can easily see the sense in which a preemptive attack on Iran's nuclear capabilities can be justified, for the potentially far greater number of lost lives such an attack might prevent. I spent some of my childhood however in an American city which knew it was targeted by Soviet missiles, and don't remember anyone moving to New Zealand because of it.
The Jews waited a very (very very) long time to come home, and as a group they're not about to be chased out, certainly not because of a troublesome spot of adversity.