Maj. Mary Jennings Hegar talks about being shot down by the Taliban, being a warrior and mother, and why being told she "shoots like a girl" is a compliment. TV critic David Bianculli reviews 'Feud: Bette and Joan.' Also, 'National Geographic' photographer Joel Sartore is on a mission to document every captive animal species in the world. (So far he's photographed about 6,500.) He talks about racing against time to photograph endangered species for 'The Photo Ark.'