But, despite widespread depravity and injustice, we also found a remarkable resilience and optimism. Just like people all around the world, the Sudanese are determined to build a better life for their children and grandchildren.

In Pennsylvania, a 1998 inquiry into a supermax prison notorious for racist guards revealed videotapes of routine beatings and elaborate rituals of humiliation. Specialist Charles A. Graner, identified as a ringleader in the Abu Ghraib depravity, has worked at that prison since 1996.