With AR-15s, Mass Shooters Attack With the Rifle Firepower Typically Used by Infantry Troops

By C. J. CHIVERS, LARRY BUCHANAN, DENISE LU and KAREN YOURISH from NYT U.S. http://ift.tt/2GOWmD0 When a gunman walked into a Florida school on Feb. 14, his rifle let him fire in much the same way that many American soldiers and Marines would fire M16 and M4 rifles in combat. http://ift.tt/2GOWmD0