Thirteen of the largest federal agencies are using or plan to use radio-frequency identification technology, according to a study released last week by the Government Accountability Office.

Yet agencies also indicated they're concerned about RFID. Six agencies cited security considerations, and one cited legal or privacy issues. Three acknowledged the risk that RFID could be inappropriately used to track the whereabouts of people. "Key privacy concerns include tracking an individual's movements and profiling an individual's habits, among others," the report said.

By Laurie Sullivan at the EE Product Center.

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