Senator Al Gore; Gloria Steinem; Nick Nicholas Retirement; 100th Episode

Senator Al Gore describes how his priorities changed after he nearly lost his son and why the environment is the most pressing issue of our time. Gloria Steinem introduces her latest book, "Revolution from Within: A Book of Self-Esteem." Author Richard Clurman and media reporter Geraldine Fabrikant examine the forced retirement of Nick Nicholas, the heir apparent of Time Warner. On the 100th episode, Charles shares a few memorable moments that reflect the spirit of the show.