I'm pretty sure the "underlying cause" for Iran is that the Shah is no longer in power, and the Ayatollah is crazy...his figurehead is also nuts.
I got your points and stance on Iraq, but this is a way different thing. It's kinda like they cried wolf already, but now it's really needed...people need to learn that Iran and Iraq are different situations, and maybe this time the government actually DOES want to save your ass, just this time it's from some psycho Iranian who doesn't care what anyone thinks. He will do anything....good luck trying to be diplomatic.