No use of drones at night unless you are sniffing the ground for something, expert's explanation goes viral

​"Drones have no use at night unless you are doing some intelligence work, looking for some bad guys or looking for a victim or doing some type of military project. Drones can see stuff unless they have thermal optics. You need mapping during the day. The only reason will be if you are looking for something -- a person, or a gas," Ferguson said.

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