Just a few points about this mess.
1. Persians are not arabs.
2. Iran is far from creating an effective bomb and they havent got the launch capabilities either. The russianswont sell it to them. They CAN threaten the US carrier fleets in the gulf though. (although Im not sure if they can get the missiles from other sources)
3. Iran would never hand nukes over to sunni terrorists like bin laden or his brainwashed goons. Possibly the only thing Iranians dislike more than Americans are Talibans and their likes.
4. USA invaded their neighbour over some fantasy excuse. Iranian leaders are probably curious about what could stop the yanks from steamrolling them at a time of their chosing.
5. If Saddam had nukes, would USA have invaded? Dont know but if Iran have nukes is sure as hell isnt going to be a flag-waving-march-of-freedom-all-the-way-to-Teheran.
6. Iran has some pretty unstable neighbours like Pakistan, Israel and Iraq. Sure the Iraqis havent got nukes but the Americans are there and they do. Of course we all know that USA wont nuke Iran - but does Iran know that too?
7. Yes the Americans pretty much control the world. Apart from a few fuckups like invading a few third world countries (where most of the time they got licked anyway) and recently chosing a moron for president I still think theyve been doing a pretty good job since that day in 1776. Also Id rather eat KFC than borstj.