I think that we cannot sit around and hope that Iran doesn't build a nuclear weapon. I think that once they have the ability to make one, it will be too late to stop them. It is our duty to preserve this planet, at all costs for future generations. Nuclear Proliferation is something worth fighting for if anything is. We must not allow them achieve weapon grade uranium. If they set a bomb off or got a surrogate group to do so, I do not want to be one of those people saying "well I guess we should have done something about it." Nuclear bombs is not something you want to be too late to address.
Yes we can "sit around" and wait till Iran has a nuke or two. Further I would wait till they brag about having said nukes and make some kind of threat to use them. Then and only THEN do we have a right to attack them. So THEN we nuke em back BEFORE the stone age. I don't see the problem. Just What do you think Iran would or could do with a nuke if they had one? Blow up Israel? Israel has had more than enough time to sort out a peace with the Arabs. They have EVERYTHING coming to them that they have been begging for. I don't give a flying crap about Israel. They made thier own bed..let them lie or die in it.