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Chapter 8. DO THE WALLS HAVE EARS? OTHER... > By Air, by Land, or by Sea—GPS Isn't...

By Air, by Land, or by Sea—GPS Isn't Just for Planes and Fish Anymore

We've discussed the pros and cons of video surveillance. Now let's take a look at another technology, one which lets people track you even if they can't see you.

GPS, or Global Positioning Satellite service, was developed by the U.S. government as a mechanism for accurately deploying troops and weapons even in nighttime or bad weather. Commercial aviation used it for a long time to help airplanes find the airports and land even in heavy fog. Commercial and sport fisherman adopted it to help them find the big schools of fish and then find a way back to port safely. Many “gadget freaks” had them in their cars, or even hooked to their laptop map database, just so they'd always know where they were.


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