The context of the request was to figure out if the stunt of firing a gun that was attached to an UAS was done with the purpose of gaining notoriety and money, and if it was in the public's interest, as it could cause harm to the public. The FAA won, drones are aircraft, and the FAA regulates all aircraft. But broadly, this was a case about public safety, not about revenue from YouTube hits: "On the broader question of the legality of arming a drone, the law prohibits recklessly endangering the public when flying an aircraft."