Slavery is a live issue today, but the people who talk about it as such are not all of a piece. Some insist the world is now plagued by the contemporary equivalent of transatlantic slavery, and call on us to combat "modern slavery". Others hold that the on-going devaluation and destruction of black life continues the logic of transatlantic slavery. They urge us to address the "afterlives" of racial chattel slavery. These two groupings provide different...