Defense Secretary Panetta, Big Game Hunting, Parker And Stone

As secretary of defense, Leon Panetta is fighting multiple wars, pursuing al Qaeda, and trying to keep Iran from building an atom bomb. Scott Pelley reports; Then, some exotic animal species that are endangered in Africa are thriving on ranches in Texas, where a limited number are hunted for a high price. Lara Logan reports; Also, Matt Stone and Trey Parker are both both irreverent and heartwarming, just like their creations "South Park" and the hit Broadway musical "The Book of Mormon." Steve Kroft reports.