Iran has already stated Israel should not exist. We know Iran and Syria have supplied weapons to terrorists groups and have trained them. After the world gets through with this mess in Lebanon... If we get things somehow straightened out in Iraq and Afghanistan, their time will come. It will be sanctions first of course. China and Russia will again abstain from voting on the resolutions. The Arab countries know Iran is out to make trouble which is helpful. Another hope is the fact that Iran has a significant percentage of their population that is totally against their current religious regime (totally unlike Lebanon where terrorists were welcomed). I think diplomacy will work much better in the Iranian situation, than it would have with Afghanistan or Iraq. Iran was on the verge of a modern day government. The momentum is still their, especially when all the other messes end.

Israel will be kindly asked to stay out of it, just like Israel did when Iraq launched Scuds (yes, they shot him all the way from LA) during the first gulf war with no provocation by Israel whatsoever (how soon people forget this). I would like to see the US stay out of a mess if missles were lauched against our country proper.

So the short. Israel will use this as evidence and stay away from Iran unless attacked directly from the country proper. Or they might try and take out the nuclear facilities at a later date, after the Lebanon mess is cleared. This one can wait I think.