Evolutionary biologist Richard Dawkins explains why God is a delusion, religion is a virus, and America has slipped back into the Dark Ages. By Gordy Slack Apr 30, 2005 | Richard Dawkins is the world's most famous out-of-the-closet living atheist. He is also the world's most controversial evolutionary biologist. Publication of his 1976 book, "The Selfish Gene," thrust Dawkins into the limelight as