Gina Kolata; Discussion on Cloning; Eli Wallach

New York Times journalist Gina Kolata shares her new book about the scientific and ethical implications of cloning a sheep in Scotland, "Clone: The Road to Dolly and the Path Ahead." Dr. Lee Silver from Princeton University and Dr. Jon Gordon from Mt. Sinai School of Medicine debate cloning and issues surrounding human cloning. Actor Eli Wallach discusses staring in the play "Visiting Mr. Green," and looks back on his acting career in both theatre and film.