A family has arrived early for an airshow at the local U.

A family has arrived early for an airshow at the local U.S. airport, to get a close-in parking spot and spread out their blankets and folding chairs in a choice location beside the runway to have a picnic and enjoy the show. None of the family members is a pilot or has significant aviation knowledge. Picnic finished and with much time remaining to kill before the show starts, the children are getting bored and start playing with their small remote-controlled quad-copter UAS, flying it over the aircraft taxiways, ramp, hangars, and gathering crowd at altitudes from the surface to about 150' and occasionally zooming low over the crowd and swooping close to the active runway, causing the pilot of at least one aircraft to abort an attempt to land.

1. Analyze the legality/illegality of the operation under current Federal Aviation Regulations, identifying:
2. Each specific FAR violation that might be charged
3. Potential penalties the FAA could impose for each such violation.
4. Analyze the legality/illegality of the operation under current federal aviation-specific criminal laws, identifying:
5. Each specific federal aviation-specific crime that could be charged
6. Potential penalties for each such crime
7. May there also be state UAS-specific laws being violated here? Explain.