It was another devastating blow for black Africa’s most powerless from the world’s most powerful black American. Like in his 2009 African visit when he visited a former European slave depot in Ghana, during his recently concluded 2013 African tour U.S. President Barack Obama again deemed that the defunct trans-Atlantic slave trade was the only past black African slavery worthy of his attention. While paying homage to the victims of the trans-Atlantic trade is obviously necessary for myriad reasons, the U.S. president failed once more not only to mention Africa’s other historical slave trade, Arab slavery, that also involved millions...