Cam Edwards speaks with Mark Keefe, Editor-in-Chief of American Rifleman magazine, about the American Rifleman Special Sessions at the 140th NRA Annual Meetings in Pittsburgh, Pennsylvania. This year the featured sessions are "The Greatest Pistol in the World: 100 Years of the U.S. Model 1911." The seminars will be held both Saturday and Sunday and will include talks by Mark Keefe, Phil Schreier of the National Firearms Museum, Martin K.A. Morgan, military historian, and several other special guests. Originally aired 4/25/2011.