Walter Cronkite; Alice Walker

Former CBS News anchor Walter Cronkite shares his documentary, "What's Ailing Medicine?," which explores the inadequacies of the American health care system through individual case studies.Pulitzer Prize-winning author Alice Walker explains her preoccupation with the practice of female genital mutilation, which is the subject of her last novel, "Possessing the Secret of Joy," and her new documentary, "Warrior Marks."