http://www.washingtonpost.com/wp-dyn...101801663.html

Summary: Major printer manufacturers installed a hidden system that prints small yellow dots on documents. These dots form a code that provides the printer's information and date of printing. The Feds say this system is designed to thwart counterfeiters; you already know what privacy advocates think about

With all the millions of documents printed each day, you have to wonder how it was kept secret for so long...

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Proudly a "South Park Republican"

eh.. wasn't it always known that computer printers have always done that?

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The United Church of the Latter Day Tangential Tarts
"When I'm in command, every mission is a suicide mission!" -Capt. Zapp Branigan
"Did you know that Republicans are stupid and evil?" -Bill O'Reilly, Feb 2010

People always find a way to counterfeit.

Sure, they know the printer's ID, but they don't know I own it (unless I register it).

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Some days it's not even worth chewing through the restraints.