"sky over a populated area" seems like you're putting words in my mouth. I explictly said that having them fly over the ocean to avoid exactly this kind of exte

"sky over a populated area" seems like you're putting words in my mouth. I explictly said that having them fly over the ocean to avoid exactly this kind of externalty. As for the environment, well, this is a self-limiting problem. Either it was only a small aircraft or they're rich and now dead and their money can be used for cleanup.