Iranian President Mahmoud Ahmadinejad on Monday questioned why Iran can't have a nuclear program when the United States has one, repeated his inference that historical accounts of the Holocaust are myths, and denied that there are homosexuals in Iran.

In animated remarks before students and faculty at a controversial speaking engagment at Columbia university, the Iranian leader also denied that Iran sponsors terror, and instead pointed the finger at the U.S. government as a supporter of terrorism....

Columbia President Lee Bollinger opened the program with a blistering introduction in which he lambasted Ahmadinejad for calling for the annihilation of Israel, denying the Holocaust and supporting the execution of children, and told the leader of Iran that he resembled "a petty and cruel dictator."

Bollinger levied repeated criticisms against Ahmadinejad, calling on him to answer a series of challenges about his leadership, blasting his views about the "myth" of the Holocaust as being "absurd," and saying that he doubted he "will have the intellectual courage to answer these questions."

"You are either brazenly provocative or astonishingly uneducated," Bollinger told Ahmadinejad about the leader's Holocaust denial. "Will you cease this outrage?"

After sitting through Bollinger's rebuke, Ahmadinejad rose to applause, and after a religious invocation, opened his remarks by objecting to the scolding, saying it was insulting to be spoken about that way.