Banks' pleas turn violent and inciting when she refers to the 2008 PBS documentary "Traces of the Trade: A Story From the Deep North," about the DeWolf family of Rhode Island. According to the filmmaker, Katrina Browne, a descendant of the DeWolfs, her family was made up of slave traders who sailed their ships to West Africa in the late 18th century in order to sell captives at auctions in South Carolina.