That time is here. I'm not all that smart and have made several quadcopters from parts. These do not have the geo restrictions that the commercial ones like DJI come with. There are thousands of people across the country doing the same with FPV drones. I live very close to a base that it's not uncommon to see Air Force One lands. I've often wondered if they have some sort of jamming software. It would be very easy to cause problems in a crowd and it's just a matter of time.