In mid-2004 the Darfur crisis in Western Sudan forced itself onto the center stage of world affairs. Arab Janjaweed militias, who support the Khartoum government, have engaged in a campaign of violence against the residents of Western Sudan. A formerly obscure tribal conflict in the heart of Africa has escalated into the first genocide of the twenty-first century. In sharp contrast to official reaction to the Rwandan massacres, U.S. Secretary of State...