The U.S. Department of Homeland Security released this report on Radio Frequency Identification Technology (RFID) "that is to be used in cross border travel documents to facilitate the land border primary inspection process. A unique number is embedded in an RFID tag which, in turn, is embedded in each cross border travel document. At the border, the unique number is read wirelessly by CBP and then forwarded through a secured data circuit to back-end computer systems. The back-end systems use the unique number to retrieve personally identifiable information about the traveler. This information is sent to the CBP Officer to assist in the authentication of the identity of the traveler and to facilitate the land border primary inspection process."
The report covers how the technology is to be used, what information is to be collected and why, and the impact on individuals' privacy.