'Within the last two weeks, Iranian leaders said they will spread their nuclear weapons technology to "all of our Moslem brothers".'

I wouldn't doubt that is already a fait accompli. It likely happened when the USSR broke up. There are Muslim-dominated states and they hda (have) nuclear technology. Besides, how to make a fission device has been public knowledge for decades. It's the material to 'fission' that has so far been difficult to acquire.