Via Pharyngula, an interesting concept from Susan Jacoby, author of Freethinkers: A History of American Secularism:
“Much of what has gone disastrously wrong in American policy, especially foreign policy, in recent years can be attributed to a reliance on blind faith rather than evidence. When The Washington Post’s Bob Woodward asked President Bush whether he had consulted his father before going to war in Iraq, Bush famously replied that he had consulted a “Higher Father.” Isn’t it fascinating that the voice of God always sounds suspiciously like one’s own voice?
When politicians start citing God as the authority for whatever they want to do, they are usually promoting some policy that defies human reason.”
God does seem to be able to justify just about anything for people, from charitable goodness, to justifying genocides.