like many things in this world drone are a neutral force. They are not going away. They can be used for good as in this post. They can also be used for more sinister purposes as in big brother or stalking your ex-wife. I think there is a concern out there that sometimes this much power can get into the wrong hands. Think of how excited Hitler or Stalin would be if they had drones in their day. OH MY! However for the purposes of conservation as in this post or to deliver pizza on a cold winter's night it is wonderful! Thanks for an informative an intriguing post!