an excellent use of gps

And how long can it be before paper bills themselves have signalling devices embedded in the paper?

SPOKANE, Wash. - Moments after a bank was robbed, police found a duffel bag full of cash — and the global positioning satellite device that bank workers had tucked inside.

The device used satellite signals to relay the location of the getaway minivan to police shortly after the Wednesday robbery.

The driver, Thomas R. Fricks, 38, was ordered held without bond Thursday by U.S. Magistrate Judge Cynthia Imbrognio.

"You guys are good!" Fricks said as Spokane Police Officer Tim Moses arrested him shortly after the Washington Trust Bank branch robbery, according to documents filed in federal court.

From this Yahoo! News story.