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How would you use RFID's to improve your city?
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Track the flow of currency
May 08, 2013 Karmyn G
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I was thinking about the possibility of RFID-enabled money, and found that this technology is already being developed. The RFID is in the paper itself, so this technology could be applied to any paper item (such as tickets).

It would be interesting to see how currency flows and moves over distance and time. It would also be useful for crime prevention and detection.

More Info:
http://www.bbc.co.uk/news/technology-22369628
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