And here we see the results of inviting Ahmadinejad to lecture at a prestigious university. No mention of the laughter or the fact that he really didn’t answer their questions or the stinging rebuke of Bollinger’s introduction:

Despite entire US media objections, negative propagation and hue and cry in recent days over IRI President Mahmoud Ahmadinejad’s scheduled address at Colombia University, he gave his lecture and answered students questions here on Monday afternoon.
[…]

Before President Ahamadinejad’s address, Colombia University Chancellor in a brief address told the audience that they would have the chance to hear Iran’s stands as the Iranian President would put them forth.

He said that the Iranians are a peace loving nation, they hate war, and all types of aggression.

[…]

The audience on repeated occasion applauded Ahmadinejad when he touched on international crises.

(via)
They even reported that he received a standing ovation from the audience. It won’t be too hard for him to make the case in his country and on Arab TV that he has the support of the American people.
Good job, Columbia! You have just become a useful tool to our enemy in the propaganda war of the jihadists. You’ve given a platform to a man who is bent on annihilating Israel and defeating the West.