Mandela roundtable: A reporter, biographer and poet reflect

      |CBS News correspondent Bob Simon covered Nelson Mandela's election as South Africa's first president under democratic rule. Richard Stengel, former Time magazine editor, wrote the biography, "Mandela's Way" and collaborated with Mandela on his autobiography. Yvette Christianse is a South African-born poet and novelist, as well as a professor at Barnard College. The three talk to the "CBS This Morning" co-hosts about Mandela's heroic life and legacy.