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.
By zooming in, drones can track individual objects that are moving, like cars...
...and people.
See the rest of the story at Business Insider