The American privateer Marlborough set out in 1777-1778 to disrupt British trade and enrich its crew and owners by capturing British merchantmen.  The Marlborough focused on Britain's slave trade, attacking the slave-trading port at the Isle de Los off today's Guinea. This successful raid, and other attacks by American privateers on British slavers, had repercussions for the Trans-Atlantic slave trade.  We talk with Christian McBurney, author of Dark Voyage:  An American Privateer's War on Britain's African Slave Trade.