[Erik Latranyi]

We've found that the dots from at least one line of printers encode the date and time your document was printed, as well as the serial number of the printer...

And Jello will leave a radioactive trail wherever you took a dump!

This is hogwash and useless as a law-enforcement tool. Just dispose of your printer after use and nothing can be proven.

[kpp_kpp]

no, part of the point is they can match things printed by the same printer w/o any other information... thus using to contents of various printed items to help identify a person.

[LexBaird]

This is hogwash and useless as a law-enforcement tool. Just dispose of your printer after use and nothing can be proven.

These are expensive color laser printers, not cheapo disposable inkjets.