For the first time in public, Bush warned of the risk of "World War III" if Iran gets nuclear weapons.
"I believe that the Iranian -- if Iran had a nuclear weapon, it would be a dangerous threat to world peace. It would -- this is -- we got a leader in Iran who has announced that he wants to destroy Israel. So I told people that if you're interested in avoiding World War III, it seems like you ought to be interested in preventing them from having knowledge necessary to make a nuclear weapon. And I take this very -- I take the threat of Iran with a nuclear weapon very seriously."