Tragedy in Newton; Costa Concordia; The Vatican Library's treasures

60 Minutes reports: Tragedy in Newtown Scott Pelley reports on the Newtown shooting and interviews a school nurse, a former classmate of the alleged gunman's, and former Secret Service members. Scott Pelley reports on the Newtown shooting and interviews a school nurse, a former classmate of the alleged gunman's, and former Secret Service members. Costa Concordia: Salvaging a shipwreck Eleven months after wrecking at sea, the Italian luxury liner awaits one of the most expensive and daunting salvage operations ever. Lesley Stahl reports. A rare look at the Vatican Library's treasures No one is allowed to borrow a book from the Vatican Library except the pope. And no wonder: the archive holds some of the oldest and most precious works of art and treasure known to man. Morley Safer and "60 Minutes" cameras get to see the best of the best.