Well, if by "nukes" you mean Iran's very real nuclear weapons program, Iran is obligated to NOT have a nuclear weapons program at all since Iran is a signatory nation of the Nuclear Non-Proliferation Treaty (NPT).

And, if by "nukes" you mean Iran's energy-related nuclear program, Iran is obligated to abide by the rules of the NPT...of which Iran hasn't acted in full compliance of...as stated by the International Atomic Energy Agency (IAEA).

So, it is understandable why numerous countries...and not just the US...mistrust Iran regarding her nuclear program and that they demand that Iran live up to her obligations regarding the NPT...as well as be penalized for her numerous previous infractions of which Iran hasn't up till now fully and openly explained to the UN.

If the US is not living up to her obligations as stated in the NPT, then the signatory nations of the NPT aught to discuss such infractions.

However, any such infractions does not excuse Iran from having to live up to her own obligations as stated in the NPT.

And, again, it isn't just the US who has an issue with Iran's nuclear program.

So, why single out the US while asking such an unrelated question?

(France, the UK, Russia, and China-all signatory nations of the NPT-have nuclear weapons too, you know.)

Well, first of all I'd try to understand why my neighbor has a cannon pointed at me and I'd try to rationally adjust any aggressive actions I may have taken toward my neighbor.

Then I'd call the police to see if my neighbor is abiding to the law of the land.

So, regarding Iran, if Iran hadn't been implicated by numerous world-wide intelligence services as being a decades-long sponsor for terrorist organizations and she had been living up to her obligations as a signatory nation of the NPT, then we would very likely NOT be having this discussion today.