UAV drones- ABC aired two videos about police using drones to spy on Americans.

Nightline- Drones who is watching you?
http://abcnews.go.com/Nightline/video/drones-watching-15661073

Drones fly over U.S.
http://abcnews.go.com/WNT/video/drones-fly-us-15652786

U.S. Army RQ7-B Shadow Tactical Unmanned Aircraft System (TUAS) Handbook.
http://info.publicintelligence.net/USArmy-ShadowTroop.pdf