The very first thought that comes to my mind is "how are they going to transit the U.S. defense air space that has been established over Iraq"? This isn't the early 80's any more.
They may get it, but this time they will probably need our permission.
They can't. That's why I think U.S. will prevent them, because it would have to be done with our permission, and we won't give it.
Do you think that's a problem? I'd bet we refuel them on the ground in Iraq someplace out of sight. You won't see that in the news though.
After watching us roll up Iraq as fast as we did following Afghanistan, the mullahs won't do anything with the amount of dissent they're facing at home. They're hoping the anti-war protestors will Vietnam any possibility of us doing anything. That along with posturing is the only thing they can muster.
After Bush is re-elected, the mullahs will see the writing on the wall unless they're totally out of touch with reality. Besides North Korea needs another example to "encourage" cooperation. Watching Iran's nuke facility go poof is the best thing to get the little guy's attention.