Actually Perham you do realize thing will probably be bad in Iran if we do have to go to war.

First there is the possibility Israel will simply act without US approval and hit your reactor shortly before it goes on line or once it becomes apparent that diplomacy has failed. Though if your aid defense is tight enough they might hold off.

Or they might figure their existence is on the line and take it out anyway despite suffering losses.

Now just a stike like that might not be too bad for civilians.

But if they don't hit the reactor and it does power up Israel or the US will almost certainly attack if inspectors are kicked, spent fuel isn't returned to russia, or the plant starts powering down for fuel removal. The problem then is that instead of a pile of cement you wind up with an ecological disaster.