Privacy Threat in New RFID Travel Cards?

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Privacy Threat in New RFID Travel Cards?
ZDNet has an interesting article rehashing the problems with privacy in future RFID-equipped travel documents and ID. The piece focuses on a recent speech given by Jim Williams, director of the Department of Homeland Security's US-VISIT program. From the article: "Many of the privacy worries center on whether RFID tags--typically minuscule chips with an antenna a few inches long that can transmit a unique ID number--can be read from afar. If the range is a few inches, the privacy concerns are reduced. But at ranges of 30 feet, the tags could theoretically be read by hidden sensors alongside the road, in the mall or in the hands of criminals hoping to identify someone on the street by his or her ID number."

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