Ok, I am not a conspiracy theorist but I found this interesting and possibly worth testing. In a recent meeting of a bunch of Dronies, a comment was made that the last two time the POTUS was in town, the drones refused to fly. Jamming? SubCarrier messages? Or, just dumb luck. Who knows for sure with only two samples but maybe worth knowing more? This forum has a world wide exposure so it would not be all that hard to test theory. Tag your experience or knowledge here.