Okay, that's possibly the most alarmist title I could have chosen. But this is what the government is moving to doing.
What's a UAV? Unmanned Air Vehicle, a.k.a. Drone. They are being used widely in Iraq and Afghanistan against "the terrorists". There's pointers to various articles at the end of this. This has been a long time coming, and it clearly fits into the general government strategy to install broad surveillance.
My first thought is -- the C|NET and AOPA articles (linked below) are only looking at regulatory issues. One example is a tiny surveillance aircraft, that weighs all of 14 pounds, and was used to buzz a couple biker rallies in North Carolina. A point in one of the articles is that an airplane hitting a bird causes a lot of damage to the aircraft (and kills the bird), so what would this thing, at 14 lbs weighing much more than the typical bird, do to an aircraft? These things don't carry transponders, so how are pilots going to detect them and avoid running into them? They are unmanned, and so won't have an in-built ability to avoid other aircraft.