The Nuba are both Christian and Muslim, yet they have managed to live together in peace. The riverain Arabs who control North Sudan hate them because they are an African people. The same holds true in Darfur where the African tribes are uniformally Muslim. Despite being Muslim, the various tribes, Fur, Berti, Massalit, etc., are still black (and labeled in common Arab talk as abeed, or slave). Arab Sudan is the worst human rights violator in the world, and the Arab League really could care less. The Arabs are the scourge of mankind.