Surveillance cameras in stores, on traffic lights, over ATMs and in subway stations can track our every move. Every swipe of a credit card, every click of the computer keyboard leaves a trace of our movements, our purchases, our preferences. Our Social Security numbers, personal information, taxes and bill-paying histories are logged in databases and easily cross-referenced by law enforcement officials as well as advertisers. In our information-rich society, it would seem, disappearing would be close to impossible.
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