If Islamic nutjobs had nukes, they would have used them on Israel and the United States by now along with anyone else who doesn't agree with thier theological thinking.
But you have offered nothing to really support that assertion.
However, that is also irrelevant to the topic, which in case you have missed it is "Iran, Nukes, and the End of the World".
A Nation State is unlikely to use nukes against another Nation State. Iran with nukes is no greater threat than Iran without nukes. One sad thing about the MAD concept is that it really does limit your actions.
In addition, you have shown no reason to think that any nuclear explosion would lead to the end of the world.
Aslan is not a
Tame Lion