Since September 2001 we have become more aware of how religious belief can promote evil deeds. This is not new, however. The history of evil perpetrated in the name of religion has been discussed by authors such as Richard Dawkins (The God Delusion), Christopher Hitchens (God Is Not Great), Sam Harris (The End of Faith and Letter to a Christian Nation) and Michael Jordan (In the Name of God : Violence and Destruction in the World’s Religions).
One would have to be blind to disagree with these authors. However, I think the problem of their analyses is that it is restricted to considering only religion. This doesn’t help us understand the origins of evil in secular situations or evil activity carried out by mankind in general.