If you think there needs to be a debate about the legality of radar detectors, how about the use of electronic traffic light changers. Hat tip to my brother-in-law.

This reminds me of a trick I've played on people once or twice (when it's safe to do so of course). If you find yourself in the passenger seat of a car while sitting at a red light, start a conversation with the driver. Before the light turns green, point to the light and say "it's green, go ahead". You'd be surprised how many people look at the light and because they trust what you said, start to cross the intersection even though they look up and see the red light themselves. Again, please don't do this in Times Square at rush hour.