Quoted:
At Columbia, university President Lee Bollinger pulled no punches. He called him a "petty and cruel dictator" and said his Holocaust denials suggested he was either "brazenly provocative or astonishingly uneducated."
"I feel the weight of the modern civilized world yearning to express the revulsion at what you stand for," Bollinger said to loud applause.
I heard him saying these things on the radio, and the anger and outrage in his voice was apparent.
Although on one point, one which can't be emphasized enough, President Bollinger is wrong: Ahmadinejad is not a dictator. He's not a legitimately elected President either, but that's not the point, because he's not a dictator. Supreme Leader Khamenei is the dictator. He holds absolute authority over the military and security forces, including the unilateral right to declare war, the right to approve or reject any legislation, and has absolute control over all media.
Ahmadinejad's position as "President" is almost entirely symbolic, and over matters military he has no control to speak of.
Anyway, to continue:
"In Iran we don't have homosexuals like in your country," Iranian President Mahmoud Ahmadinejad said at Columbia University on Monday in response to a question about the recent execution of two gay men there.
"In Iran we do not have this phenomenon," he continued. "I do not know who has told you we have it."
Loud laughs and boos broke from the audience of about 700 people, mostly students at the Ivy League school whose garb included "Stop Ahmadinejad's Evil" T-shirts.
The President of Columbia made a great point too:
"It's extremely important to know who the leaders are of countries that are your adversaries. To watch them to see how they think, to see how they reason or do not reason. To see whether they're fanatical, or to see whether they are sly," he told ABC's Good Morning America.
The College Republicans and College Democrats both helped supply many of the questions, which weren't "tough" so much as frickin' merciless. The man was hectored by Bollinger and heckled, booed, and laughed at by the audience.
I honestly think Columbia did itself proud, and proved the critics wrong.
Quotes taken from here and here. Oh, and for an in-depth understanding of how Iran's government really works, and how it's stupid to call Ahmadinejad a dictator (he's not, he's a dictator's plaything), just read this.