The issue that has to be made clear to the Mullahs and Imans is this: If there is any use of nuclear weapons by Iran or other Muslim entity, Iran will be "glassed".
The basics are simple: Imans and the like do not want to die. They encourage others to do so as they enjoy the power and pleasures of earthly living.
If Iran gets a nuke, they will use a nuke.
Any and all measures to prevent that must be taken.