Yahoo! is reporting that "several printer companies quietly encode the serial number and the manufacturing code of their color laser printers and color copiers on every document those machines produce." Oof! This means that anything you print can be tracked back to you, making anonymous printing an impossibility.
Nothing to be concerned about, unless you are printing counterfeit money, right? That's what Uncle Sam says. I, however, am not sure I like the end of anonymous printing; sometimes there are things that need to be said that are dangerous and provocative, and sometimes there are people who don't wnat those things to be said, and who will do anything to prevent such communications. And maybe I'm just paranoid.