The group of ex-military lawyers published their memo after The Washington Post released a report on the alleged killing of survivors from a boat strike.
U.S. Special Operations Command is looking for a contractor to develop a 10-day course to train operators in building and flying first-person view drones.
In a training first, an Army National Guardsman used a tablet to control Sikorsky's optionally piloted Black Hawk and plan its task during an exercise.