The Myth of Religious Violence
“The popular belief that religion is the cause of the world’s bloodiest conflicts is central to our modern conviction that faith and politics should never mix. But the messy history of their separation suggests it was never so simple.”
Karen Armstrong, "The Myth of Religious Violence," The Guardian - http://bit.ly/1vBXP5U
Peculiar that she doesn't cite William Cavanaugh's excellent book by that title.