Now this from EPIC:
EPIC Warns Federal Agencies About RFID in US Travel Cards
In comments (pdf) to the State Department and Homeland Security, EPIC recommended against the use of "long-range" RFID technology (which transmits personal data to remote tracking devices) in the proposed "PASS card" for travel between the United States, Canada, Mexico, and the Caribbean. EPIC explained that the tracking technology would jeopardize the privacy and security of US travelers. Earlier this year, Homeland Security abandoned (pdf) a similar proposal for US-VISIT travel documents, following comments from EPIC (pdf) and the Government Accountability Office (pdf). See EPIC's pages on RFID and US-VISIT. (Aug. 1)
http://www.epic.org/