U.S.- Africa Summit; Douglas Brinkley

Presidents Jakaya Kikwete of Tanzania, Moncef Marzouki of Tunisia, Jacob Zuma of South Africa, Macky Sall of Senegal, and Paul Kagame of Rwanda discuss business relations with the U.S., the Ebola epidemic, and other challenges that Africa faces. Author Douglas Brinkley talks about co-authoring the book "The Nixon Tapes," which reveals an uncensored view of President Richard Nixon's time in the White House.