All nations have the right of self defense. As far as I know all the nations you listed except Iraq have the right to develop nuclear weapons if they so choose, and of course Pakistan, India, and Israel already have them. Iraq does not have that right, because of the restrictions they agreed to at the end of the Gulf War.
I think it's very naive to say that Iraqi nuclear weapons would be no threat to the U.S.
Market Data 
Markets 
AI
