A Reason (If You Need One) to Turn Off the Cell Phone While on the Road

Found this at Schneier.

The Missouri Department of Transportation will spend $3 million annually on a program to monitor the movements of individuals on highways via their cell phones -- without their knowledge or consent.

Delcan NET, a Canadian company, developed the system which triangulates the location of each driver by monitoring the signal sent from the cell phone as it is handed off from one cell tower to the next. Each phone is uniquely identified and the information is compared with a highway map to record on what road each motorist is traveling at any given time. The system also records the speed of each vehicle, opening up another potential ticketing technology.

Well, if the phone is off, they can't track it. At least not right now. That will be the next intrusion.

See, I'm not paranoid. They really are encroaching on our liberties.