Here is a clip of Tim Keller, pastor of Redeemer Presbyterian Church in NYC, giving a talk at Berkeley about his new book, The Reason For God. He talks about all the typical reasons why nonbelievers don't believe:
"It's arrogant to say there's only one right religion."
"How can there be a God when there's so much evil in the world?"
"Religion is a strait-jacket."
"Evolutionary biology basically disproves religion."
"How can a loving God send people to hell?"
"The Church is responsible for so much injustice!"
(Length: 95 minutes)