“I had done this a few dozen times myself, 6,000 miles away from my Alexandria, Va., apartment. As an Army infantryman in Iraq, I’d always been on the trigger side of the weapon. Now that I was on the barrel side, I recalled basic training’s most important firearm rule: Aim only at something you intend to kill.” Alex Horton with timely piece on an interaction with law enforcement: In Iraq, I raided insurgents. In Virginia, the police raided me.