Dr. Andy Thomson gives a talk on morality at the Atheist Alliance International 2009 Conference in Burbank, California. Dr. Thomson uses Francis Collins' claim that morality is proof of God as a jumping-off point to discuss what we know about how morality works and where it came from.
The conference was co-sponosored by The Richard Dawkins Foundation for Reason and Science, which brought in several well-known scientists to give talks.