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June 30, 2016

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This June 2013 photo provided by the University of North Florida Office of Research shows a drone at the Blue J area in northwestern New Mexico. Researchers outfitted a customized drone with a heat-sensing camera to unearth what they believe are ceremonial pits and other features at the site of an ancient village in New Mexico. (AP Photo/Cynthia Hotujec-Kantner)

AP

This June 2013 photo provided by the University of North Florida Office of Research shows a drone at the Blue J area in northwestern New Mexico. Researchers outfitted a customized drone with a heat-sensing camera to unearth what they believe are ceremonial pits and other features at the site of an ancient village in New Mexico. (AP Photo/Cynthia Hotujec-Kantner)