If the revelations about the NSA collecting phone records and other data wasn't enough to worry you consider this: FBI Director Robert Mueller just came forward and admitted that the FBI has used unmanned aerial vehicles for domestic surveillance.
What exactly can a spy drone see? Reddit user uranusaur found a video excerpt from a Nova story called "Rise of the Drones" from January.
The video shows impressive camera technology currently under development for drones and explores where they might be in a few years.
Using a 1.8 billion pixel camera, drones can watch entire cities at once.
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By zooming in, drones can track individual objects that are moving, like cars...
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...and people.
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See the rest of the story at Business Insider