A little-known spy agency that analyzes imagery taken from the skies has been spending significantly more time watching U.S. soil.
In an era when other intelligence agencies try to hide those operations, the director of the National Geospatial-Intelligence Agency [NGA], retired Air Force Lt. Gen. James Clapper, is proud of that domestic mission.
...Geospatial intelligence is the science of combining imagery, such as satellite pictures, to physically depict features or activities happening anywhere on the planet. A part of the Defense Department, the NGA usually operates unnoticed to provide information on nuclear sites, terror camps, troop movements or natural disasters.
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