Semi Automatic Rifles Q and A

December 27, 2012 - 7:33 PM
A variety of military-style semiautomatic rifles obtained during a buy back program are displayed at Los Angeles police headquarters on Thursday, Dec. 27,2012. Similar weapons have been used in at least four high-profile shootings in the past year, including most recently the Connecticut school shootings and the Christmas Eve killings of two New York firefighters. (AP Photo/Damian Dovarganes)