On its own terms, how worried should we be about civilian use of drones? Moderately. It’s too easy to imagine the use as simply sporadic and harmless, such as hobbyists flying drones around the way that they might tinker with model rockets or balcony telescopes. But for better or worse, it’s a space for disruptive innovation: prices to fly and record will be trivial, and what might be done with the results will expand with imagination and additional leaps in technology. People can become recognizable by their unique gaits; anyone walking could be located at a particular place and time. Car license plates can be read, as perhaps could cracked toll booth fast pass IDs.