I hear Firefighters all the time talk about how they could find good use for flying spy cameras that are disguised as hummingbirds to keep an eye on things without being seen by the fire. Sure, the po-po probably could find use for them too, but you just know they wouldn't, as it would be unethical or something, unless it's for chemical leaks which is totally ethical. Rest assured that a flying/hovering spy camera would never ever be used for spying.
Technology is moving faster these days; it was two years ago that I saw bird sized spy planes disguised as. . . .well, birds. I'm sure nobody has put those to use in that time.
Well, come to think of it, there sure are a lot of little birds around my house now that the black helicopters have left.