This totally just came to me. It seems infinitely insane to use nuclear weapons against Iran, although I would certainly not put it past *. Nothing is too insane or stupid for this administration and I really think they want to either kill us all or are just too wrapped up in their clubhouse PNAC childishness to look at reality.
That being said, I wonder if perhaps the plan isn't to actually use nukes against Iran, but let us get afraid that they are going to. Then, when they attack using conventional weapons, they're hoping we'll all be relieved and not as outraged at being dragged into another war of choice because at least they didn't use nukes.
Just another idea in my endless quest to try to make sense of all these bat-shit crazy people running our government.