Drone manufacturer DJI published a white paper proposing a kind of license plate for drones in the form of a wireless identifier that the buzzing UAVs would be required to broadcast. The paper describes a possible way to balance the privacy of drone operators with perceived public concern about whose controlling the bots buzzing overhead. You can read the full paper as a PDF here. From David Schneider's column in IEEE Spectrum:
As the company points out in its whitepaper, drone operators might want to maintain anonymity even if there were people around to witness their flights. Suppose, for example, that a company were surveying land in anticipation of purchasing and developing it. That company might not want to clue in competitors. Or perhaps the drone is being flown for the purposes of investigative journalism, in which case the journalists involved might not want others to know about their investigations.
DJI proposes that drones be required to broadcast an identifying code by radio . . . That code would not include the name and address of the owner, but authorities would be able to use it to look that information up in a non-public database—a kind of electronic license plates for drones.
At the same time, it's easy to understand why law-enforcement or regulatory authorities would sometimes want to identify the owner or operator of a drone, say, if somebody felt the drone were invading their privacy or if a drone were being flown close to a nuclear power plant. "Many people have concerns [about drone flights] that could be ameliorated if somebody could talk to [the operator]," says Adam Lisberg, DJI's spokesman for the United States and Canada.
DJI's proposed solution is to require drones to broadcast an identifying code by radio, perhaps with that code embedded in the telemetry or video transmissions. That code would not include the name and address of the owner, but authorities would be able to use it to look up that information in a non-public database.