Remember who invented chess!
I've hit this point
before but didn't take it to the logical conclusion. Try it again:
When a criminal (individual or nation) wants a weapon, we don't start with the assumption that he must invent, develop, and build the weapon. We start with the assumption that he can buy the weapon. This is true for your ordinary gangster like Tyrone Booker, and it's true for the more exotic criminal like Persia.
Since Persia can buy nukes from China, Russia, or North Korea just as easily as Tyrone can buy his 9mm from the local Crips or Bloods retailer, we should start with the assumption that Persia already has all the weapons it wants.
In that case, what's all the kerfuffle about "peaceful development"? Why go through all this UN junk? Well, maybe it IS just peaceful development, and maybe Persia can prove the point.
This way, the rest of the world makes the first move.
This way, Persia can pose as the aggrieved victim, who is "justified" in responding with full force.