Commercially available, high-performance unmanned aerial systems -- when used for nefarious means -- pose “a significant and growing threat” to U.S. forces, particularly dismounted infantry and lightly armored vehicles in the Army, Marine Corps and Special Operations Forces. That is a key finding of a new study by the Army Research Office of the National Academies of Sciences, Engineering, and Medicine commissioned in 2016 to assess what was deemed an “emerging major threat” from small unmanned aircraft systems (sUASs) to...