Slavery in the Sudan has come to increasing public attention during the country's 16 year war waged by the Muslim north against the black Christian south
Despite mounting evidence pointing to the disturbing reality of Black enslavement in the Sudan, Minister Louis Farrakhan and the Nation of Islam maintain ties with Sudanese President Omar Hassan al-Bashir and leader of Sudan's ruling party, Hassan al-Turabi. Under this leadership, the country has become a base for Islamic extremist terrorism, and Muslim enslavement of Sudanese Blacks has persisted.
The Minister refuses to condemn the current regime regarding this atrocity occurring in Africa to his fellow Blacks.
http://www.adl.org/issue_nation_of_islam/farrakhan_and_slavery_in_sudan.asp
This should not be surprising.
It is my understanding that there was an open air slave market in Mecca in which black Africans were bought and sold at the time that Malcolm X made his pilgrimage there and he said nothing about it.