Comment by jacquesm

To be 100% fair to the GP: indeed, Iran does not currently have an active weapons program. But they do have a weapons program, but they used it so far more for leverage. The truth is nobody really knows what they would have done had they achieved the status of nuclear armed power. But given that even the mullahs understand that there is a bit of a difference between threatening to annihilate Israel and actually doing so with all of the consequences attached to that I think they would be more like Kim or Putin than say the UK or France. They would use it for even more leverage and as insurance against being attacked.

Either way: the US is quick to say who can and who can not have nuclear weapons, but at the same time the US is the only country that ever did use them and it is one of very few countries that has (implicitly) threatened their use in recent memory. The only other two countries to do so are Israel and Russia.