[quote name='E-Z-B']Correct. As long as they don't use them on other countries, they have every right to build an arsenal of nuclear weapons. North Korea, too. Why should the U.S. and a few others have a nuclear deterrent?[/QUOTE]
I believe that this ends up being more of a United Nations issue.
Even if these two nations got nuclear weapons, they'd have to be outright stupid to try to launch a nuclear strike on American soil.
However, other nations in thier regions would be rather concerned, as they have no real deterant, and Iran and North Korea already seem rather hostile to them.