Found via wcg's LJ, a Slate series on "American Lawbreaking" (namely, the laws that are not only routinely broken, but routinely expected to be broken with a wink and a nod, if that, from the authorities).

This is one reason why I keep coming back to the idea that all laws should expire after twenty years or so (the same law could be passed again, with or without modification, but in the absence of such an active step the law would go away).