New York City police have reported a growing number of incidents involving wayward drones. A crew member of an NYPD helicopter, for example, recently had to change its course after spotting a flying object headed in its direction. Some police are concerned that the increasing popularity of drones in such a tightly packed city could carry significant risks, even becoming a potential tool for terrorists to conduct surveillance or carry out attacks. Drone buffs, however, say the doomsday scenarios are far-fetched, and that most pilots use the drones to take aerial photos.

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