If they hit Iran with nukes they would be insane! Just looking at the casualty figures for a "limited strike":
"This small expansion of the Pentagon franchise would result in stellar production figures: three million people killed by radiation in just two weeks, and 35 million people exposed to dangerous levels of cancer-causing radiation in Afghanistan, Pakistan and India."
And what do they think Pakistan & India would have to say about that? If they go ahead the US would deserve being nuked itself.