Subsequently, law enforcement officials and the FAA’s interagency security partners have expressed concerns about the risk a concealed explosive device might pose to first responders upon opening a compartment to find a drone’s registration number. The FAA believes this action will enhance safety and security by allowing a person to view the unique identifier directly without handling the drone.
I doubt anyone loading explosives in one would have it registered.
Edited by gpsdude 2/16/2019 23:42