The divide of race has been America's constant curse. Each new wave of immigrants gives new targets to old prejudices. Prejudice and contempt, cloaked in the pretense of religious or political conviction, are no different. They have nearly destroyed us in the past. They plague us still. They fuel the fanaticism of terror. They torment the lives of millions in fractured nations around the world. These obsessions cripple both those who are hated and, of course, those who hate, robbing both of what they might become.