Back to the topic, I'm willing to bet that when Iran becomes a serious problem, Israel will spank the living stuff out of them. By looking at recent middle eastern history you can see that it is in fact Israel, not the United States, who has defined pre-emption. On a side note, I'm pretty sure we (I mean the US whenever I say that by the way) have already been poking with Iran. Several months ago there were reports of several random explosions around sites where Iran had been working on reactors and nuclear science. I am quite certain that these explosions were far from random... :-> When it does come time for Israel to make a move, I wouldn't be suprised to see some coordination between US and Israeli forces in an attack, such as tanker support or even F-22s as air cover for an Israeli strike package.