Diabetes Awareness; Lewis Puller, Jr.; Charlie Stettler

Mary Tyler Moore and author Robert Wood Johnson IV discuss their work raising awareness of diabetes. Vietnam veteran Lewis Puller, Jr. reflects on his Pulitzer Prize-winning memoir, "Fortunate Son: The Autobiography of Lewis Puller, Jr.," in which he describes his terrible experiences in Vietnam and afterward. Charlie Stettler, former manager of The Fat Boys, talks about the emergence of rap music in the U.S. in the 1980s and explains its current cultural resonance across multiple demographics.