| http://www.w3.org/ns/prov#value | - Faster than you could say ???speeding quadcopter,??? Johnson, a design technologist, realized it was a small, remote-controlled aircraft just like his - and it was only about 150 feet away. ???We were eyeing each other,??? he said, ???sizing each other up.??? Not long ago, drones were a relatively rare sight in the skies over New York City, usually piloted by photographers or, sometimes, by law-en
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