I don't see this as an issue. They're high-altitude balloons. Now let's keep this in mind: Have you gone onto google.maps and looked at the satellite view? It's all there already. And you know the spies-in-the-sky that the CIA uses. Those satellites can read the name on a golf ball sitting on the fairway. My point: If they want to snoop from the sky, they can already do it. The horse has left that barn a long time ago.