Photos: Keeping watch with unmanned aircraft

Staff Sgt. James Ellis adjusts the camera in a Desert Hawk at the Tallil Air Base in Iraq. Developed by Lockheed Martin, the Desert Hawk is launched into the air using a bungee cord as a slingshot and is designed to circle over air bases and help with security by showing possible threats up to about 6 miles away. It includes an electric motor, color or infrared cameras, and a GPS receiver.

Photo by U.S. Air Force