I find the helicopters at the Grand Canyon very annoying. Motorcycles, too noisy and too many of them. I'm uncomfortable with firearms in the park and the thousands of visitors that consume huge amounts of water, produce sewage and garbage trucks to haul waste. At some point there is a line. But as Americans we ought to be very concerned with the continual over reach by the gov't. These vision drones mean nothing for real environmental impact in the parks and actually open up some amazing views to better appreciate our parks. Let's remember a flight lasts 20 minutes. This is a simple effort of proper policy. Otherwise, we can look forward to more over reach and restrictions on just about everything.