FILE - In this June 11, 2015, file photo, a hexacopter drone is flown during a drone demonstration in Cordova, Md. An appeals court has struck down a Federal Aviation Administration rule that required owners to register drones used for recreation. (AP Photo/Alex Brandon, File)

FILE - In this June 11, 2015, file photo, a hexacopter drone is flown during a drone demonstration in Cordova, Md. An appeals court has struck down a Federal Aviation Administration rule that required owners to register drones used for recreation. (AP Photo/Alex Brandon, File)