Atheists, agnostics most knowledgeable about religion

From the Los Angeles Times:

American atheists and agnostics tend to be people who grew up in a religious tradition and consciously gave it up, often after a great deal of reflection and study, said Alan Cooperman, associate director for research at the Pew Forum.

"These are people who thought a lot about religion," he said. "They're not indifferent. They care about it."