That's the sad truth of all this. Russia, China and North Korea have been kept safe from US attack by nukes. Libya, Iraq and the endless countries the US has bombed or invaded since WW2 didn't have nukes. The more AIPAC and Israel focus US hostility on Iran, the more it will seem necessary to the Iranians to have nukes.
Hours before Mumbai bomber to hang, court rejects final appeal (Reuters)
from the article: U.S. Defense Secretary: Iran strike will hurt world economy