Iran has never claimed to be building nuclear weapons. They have claimed to be building nuclear power plants. This does not equate to having "nuclear ambitions" in the sense that you mean, pdq. They have a legal right to use nuclear power for peaceful purposes, and that is all they have ever claimed to be doing.

It is the USA that claims they are building nuclear weapons, and the USA might be lying about that in order to provide a pretext for an attack on Iran. They were lying about WMDs in Iraq in order to provide a pretext for a pre-emptive attack there. Have you forgotten?

How many times will you be fooled by the same scare tactic, pdq?

Now, if the USA could just provoke Iran into attacking them first somehow...wouldn't that be sweet? I'm sure they are busily working on some way to arrange that. There usually are ways...but it would depend on whether the Iranians could be stampeded into such a foolish action or not.