This article in Haaretz.com reports that a senior official in an Iranian strategy think tank, Dr. Seyed G. Safavi, told diplomats in London that he is recommending Iran make a preemptive strike on Israel. The intended purpose would be to head off an Israeli strike on Iran's nuclear facilities. The real question is this: Is this story disinformation, or is it for real?
If Iran should actually attack Israel, the only thing you can imagine President Bush saying to Israel is"You certainly have the right to defend yourself, with our help." Ditto a President McCain.
I'd guess a President Obama would echo Rodney King, "Can't we all just get along?" And I think Israel knows this.