That Iran has been "full-tilt" pursuing nuclear weapons for decades doesn't make sense. Building a nuke isn't that hard, and getting the nuclear material is the hardest part. They've got that worked out. They've had the capability to do so for 20 years now. I defer to the intelligence community; they have the capability to build the bomb within about a year if they chose to do so, and are also not actively attempting to do that. (Until a few days ago at least).

If Kim can get nukes, Khomeini can gets nukes.