Slavery has been endemic in Sudan for thousands of years. Today the Sudanese slave trade persists as a complex network of buyers, sellers, and middlemen that operates most actively when times are favorable to the practice. As Jok Madut Jok argues, the present day is one such time, as the Sudanese civil war that resumed in 1983 rages on between the Arab north and the black south. Permitted and even encouraged by the Arab-dominated Khartoum government,...