Iran is a very large country. Their nuclear facilities are spread around a vast area and hidden well underground. It would require a massive military operation to destroy that program and the human suffering would be greater than the Afghanistan war and Iraq war combined.
Even if Iran did make a nuclear warhead, it doesn't necessarily follow that they would use it for anything except defense.
...no doubt some do see us as a threat but you and I know that was not what I was referring to. As in 1990 HW Bush pulled together a true coalition of Nations to rise up against Iraq and their invasion of Kuwait.
...Nations typically do not band together unless something "real" has been identified -