SALT LAKE CITY, UT - MARCH 2: With an AR-15 slung over his shoulder, Bart Davidson holds his six-month-old son Tristan at a gun rights rally and march at the Utah State Capitol on March 2, 2013 in Salt Lake City, Utah. The rally attracted several hundred people for the march to the Utah Capitol in favor of 2nd Amendment rights as gun control supporters call for more limits and bans on assault weapons. (Photo by George Frey/Getty Images)
