The Devil Came on Horseback explains how Brian Steidle left the marines to look for a job and found a calling. As an observer for the African Union in the Sudan, Steilde spent six months watching as a nation consumed itself -- as the Sudanese Arab-controlled government enacted systematic genocide against its black African citizens in Dafur. It's not that the government simply stood by as local militias, the Janjaweed, enacted murder, torture and rape against the local black villages and tribes -- the government was actively engaged in aiding and abetting the Janjaweed atrocities as a tool of policy....