Why stop there, why not hit China, North Korea, and Venezuela while your at it?
Why would anyone in their right mind want to nuke Iran, when Iran is only half Iranian, and of the Iranians, 60 to 70% of them hate the Ayatollahs and Mullahs.
Israel has a right to defend herself including the use of tactical nuclear weapons. She also has the right to preempt using tactical nuclear weapons. Israel would doing the world a favor by permanently putting Iran out the nuclear business.
While 60% to 70% may "hate the Ayatollahs and Mullahs" the fact remains that they are not/can not do squat about the Ayatollahs and the Mullahs. So, you have this on-the-record nutbar as the head of the government. So, if nutbar get a nuke and decides to nuke Israel, then 60%-70% of whoever the heck they are are going to die, plus some. It's choose your option time. No option in this situation is a good one. So, the 60%-70% had better get with the program, see the train coming through the tunnel and give themselves a chance.