Russia & Pakistan already got nukes. They can lob them at us just as easily as Iran would. What's to stop Iran from getting them from them? I'm not condoning their behavior, but if they want them they'll get them from somewhere without our knowledge.
Pakistan and Russia are not yet led by radical Islamists. Neither has publicly advocated incinerating Israel. When Ahmadinejad tells us what he plans to do to Israel, I take him for his word that such is what he wants to do.
Yes, it is possible that he could get the weapons secretly. We must do everything we can to stop it. Dr. Paul won’t do that. If Iran gets nukes, they will be a nuclear blackmailer. We will be told to remove all presence from the Middle East (and perhaps other places) or they will threaten to use nukes to destroy infrastructure and stop the flow of oil to the West. That will destroy our economy, the world’s economy, and lead to the thousand years of darkness about which Ronald Reagan warned us.