Yea, the overlays are the least-worst thing there. Imagine what they do with the 2TB of videos (or more) that they are storing! They could run all kinds of analytics on that data, with time/location tracking included in there. Someday, you won't even have to pan + zoom a camera turret and will just digitally pan + zoom, because there will be cameras covering everything below the helicopter in great detail at all times. Imagine doing facial rec on it all, knowing where anyone was that was within ~500 meters of any police helicopter. Now, imagine you remove the requirement that the helicopter has a pilot, just run drones all over the place with charging terminals.