I thought it felt a bit like they were testing for reaction time and response quality. They seem to be quite serious if they are prepared to come back three or four times and risk real reponse. By now I would hope the military mm radar and drone detection stuff has been deployed. If they were just t@@ts then they would have run when it got serious.
The conversation between the drone and the controller can be managed once you get a bead on it. On many of the drones it is not encrypted or authenticated so subject to hijacking. But you have to be close enough for that to happen efficiently from what I have seen.
