Ignoring the topic at hand, D'Souza just yelled zingers about free will and the Big Bang and communist dictators. These are areas where science is just ignorant (which says nothing about whether theism has the answer) or tragedies where atheism did play a part (although that is irrelevant to the topic).

Foolishly, Dennett followed him to that territory. He should have pointed out that D'Souza left the main topic of the day unchallenged, that religion was a man-made creation.