Semi Automatic Rifles Q&A

December 27, 2012 - 3:33 PM
File-In this Thursday, July 26, 2012 file photo an AR-15 style rifle is displayed at the Firing-Line indoor range and gun shop, in Aurora, Colo. 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/Alex Brandon, File)