The surveillance state is a miracle of convenience. In the old days, if you ran a red light, you had to go through the rigmarole of being pulled over by a police officer. Today, by contrast, you are more likely to see a flash of light from one of the red-light camera mounted at intersections around the county and a week or so later receive a set of photographs in the mail: one of you behind the wheel of your car with a swear word still crinkling your lips; another of your car entering the intersection illegally; and, finally, a close-up of your licence plate. Just think: all the incriminating evidence sent directly to your home, and you didn't even have to ask for it. It's almost as cleve