Steve called in to bring up the point that law enforcement can drive around and scan people's license plates. Is it possible to have a non-scannable license plate? Leo says it's probably highly illegal to do this, but there are UV lights that can be installed on the license plate that would thwart a camera's ability to take a photo of it. It's non-visible light, but when a camera tried to get a photo, it would just show up as a bright white area. Leo would be very surprised though if this wasn't illegal, and it probably falls under the same law that prevents people from being able to obstruct the view of the license plate.