Pentagon rejects calls to arm all U.S.-based military personnel

But a growing chorus indicates that the issue will not fade away

FILE - This March 27, 2008, file photo, shows the Pentagon in Washington. Ali Awni al-Harzi, an Islamic State operative suspected of involvement in the 2012 attack on the U.S. diplomatic outpost in Benghazi, Libya, has been killed in a U.S. airstrike in Iraq, the Pentagon said Monday, June 22, 2015. (AP Photo/Charles Dharapak, File)
photo Joshua B. Van Natter stands outside a military recruiting center on Tuesday, July 21, 2015, in Logan, Utah. Gun-toting citizens are showing up at military recruiting centers around the country, saying they plan to protect recruiters following last week's killing of four Marines and a sailor in Chattanooga, Tenn. (Eli Lucero/Herald Journal via AP)

photo Crystal Cole is shown armed with a loaded handgun in front of an Army and Marines recruitment center on Wednesday, July 22, 2015, in Hiram, Ga. Cole was one of several armed citizens who held watch at the recruitment center in response to the deadly shooting at a similar facility in Chattanooga, Tenn.