John Rhys-Davies: (Reflecting on his early exposure to slavery) As a child, my father showed me a dhow in the harbor at Dar es Salaam and said, "You see that how? Twice a year it comes down from Aden filled with boxes of goods. On the way back up it's got two or three black boys on it. Those boys are slaves. And the U.N. won't let me do a thing about it."