This is a harrowing memoir of how one person has made a difference: Daoud Hari helped inform the world about the genocide in Darfur. Hari, a Zaghawa tribesman, grew up in a village in the Darfur region of Sudan. In 2003, traditional life was shattered when government-backed militias attacked Darfur's villages with helicopters and on horseback, raping and murdering citizens and burning villages. His family dispersed, Hari escaped. He and friends helped...