I think many wars have been waged in the name of religion throughout man's history, but that religion was not actually the cause. I feel that more likely it has been used as a tool by rulers of nations to unite it's masses and gain whatever they felt like gaining from other nations. Mainly I blame sheer ignorance, which with the resources of this modern age is hopefully becoming less of a factor.
All major religions teach peace, tolerance, and love.
I think the world of today is much more aware of the difference between the majority of people who adhere to their religious doctrines and the minority who alter the purpose of these doctrines by picking through details that do not reflect the larger message. I hope so, anyway. God, it's amazing. I wish I could post some of the pictures that they are showing, but I can't find them on the net anywhere. Here's a link to the documentary site.