As a material highly sensitive to the environment, graphene could act as a sensor with a single device measuring strain, gas, magnetism or pressure.

BBC: Is graphene really a wonder-material?

The staffing demands for that increase have put a strain on the Air Force, as they would require nearly 1, 700 drone pilots and 1, 200 sensor operators.

NPR: Military Weighs Cutbacks, Shifts In Drone Programs