How do you feel about a satellite system that uses (ground based) cameras to read your car's license plate and detect how fast you are driving? Law enforcement in the UK likes the idea very much, as does PIPS Technology, who says its system provides "number plate capture in all weather conditions, 24 hours a day." UPDATE: I incorrectly wrote that the cameras were satellite based, but the cameras are on the ground.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.