No, we should never plan a nuclear strike on Iran. There are millions of Iranians that like and respect Americans, and we would be making serious mistake in harming these good folks. The key would be a severe attack and destruction of Syria, taking out their armed forces and civilian population by the millions. Syria needs a good lesson, and if their people cannot overthrow their government, then so be it!!! When a nation commits itself to war, the object is total victory. Syria should be sent to hell, and maybe the Iranians will get the message as to reality in this world. However, it would even be better if we found Bin Laden and his ilk and slaughtered them all. I think the Iranians would begin to get the message!!!
I'd give it a 20% chance of a pre-emptive strike about mid-Novembet.
I'd give it a 50% chance of a pre-emptive strike next Spring.