A soldier flies a Red Cat quadcopter in this artist’s rendering. (Red Cat) WASHINGTON — The US Army is preparing a new memo to clarify the rules for flying — and losing — smaller drones in hopes of convincing soldiers and commanders that they need not fear paperwork so much that they leave the surveillance and weapons systems on shelves, officials told Breaking Defense. In October Breaking Defense reported that in the middle of a drone-dominated revolution in ground combat, some US