Iranian President Mahmoud Ahmadinejad arrived in New York on Sunday as critics protested his planned speech at Columbia University and the hardline leader denied that his country building a nuclear weapon.
"In political relations right now, the nuclear bomb is of no use," Ahmadinejad said in a "60 Minutes" interview airing Sunday. "If it was useful it would have prevented the downfall of the Soviet Union. If it was useful it would resolved the problem the Americans have in Iraq. The time of the bomb is passed."