Big Brothers will be watching soon

Solar powered, unmanned high altitude long endurance aircraft will soon patrol the skies, making satellites a thing of the past. You'll never know who's watching.

"Unmanned surveillance vehicles are increasingly omnipresent in a world which relies on knowing what people and places are doing.

"Unmanned Aerial Vehicles (UAVs) patrol innocuous-looking skies and silently report back streams of strategically-important data, video, and images from locations around the world.

"They are the ultimate Earth watchers."