WASHINGTON (AP) - The scene was Goree Island in Senegal, a place of great beauty and horrific history. As Condoleezza Rice stood at the Door of No Return, the transit point for so many Africans sold into slavery, a lump swelled in her throat as she quietly wondered which of her ancestors might have passed this way. Rice, on that African trip with President Bush last year, marveled at the "tremendous spirit and toughness" of those unknown forebears who would somehow survive all the trials to come. "It just makes me extremely proud to be descended from those people," she...