from ap: Iranian President Mahmoud Ahmadinejad questioned the official version of the Sept. 11 attacks and defended the right to cast doubt on the Holocaust in a tense appearance at Columbia University, whose president accused the hard-line leader of behaving like "a petty and cruel dictator."
Ahmadinejad smiled at first but appeared increasingly agitated, decrying the "insults" and "unfriendly treatment." Columbia President Lee Bollinger and audience members took him to task over Iran's human-rights record and foreign policy, as well as Ahmadinejad's statements denying the Holocaust and calling for the disappearance of Israel.
"Mr. President, you exhibit all the signs of a petty and cruel dictator," Bollinger said, to loud applause...
He reiterated his desire to visit ground zero to express sympathy with the victims of the Sept. 11 attacks, but then appeared to question whether al-Qaida was responsible.
"Why did this happen? What caused it? What conditions led to it?" he said. "Who truly was involved? Who was really involved and put it all together?"