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What do our cars know about us?

Ford Mustangs sits on the lot of a new-car dealership.

If you've got a newer car, chances are it's got GPS. That's useful, but it also might be collecting data on you. A Ford executive recently stirred up controversy when he said the automaker knows when drivers of its cars break traffic laws.

Alan Mulally, Ford's CEO, later said that Ford doesn't track cars -- and won't even down the road. He also called for better privacy laws as cars add new location-based technology.

Ryan Calo, Law Professor at the University of Washington, joins Marketplace's Mark Garrison to discuss. 

About the author

Mark Garrison is a reporter for Marketplace and substitute host for the Marketplace Morning Report, based in New York.
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Great story, however GPS is a passive one way system. Off the shelf GPS receivers are not being tracked by anyone. GPS coordinates are computed on your GPS using a one directional signal from multiple satellites using a broadcasted time and 3D coordinate satellite location. It's trigonometry and geometry. This was not made clear in the story. GPS devices themselves may store a history or log of time stamped coordinates however, and that can be accessible buy the user or "big brother" if they get their hands on the device or hack into it if it's wireless I suppose.

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