“RFID tags used in two new types of border-crossing documents in the U.S. are vulnerable to snooping and copying … United States Passport Cards issued by the U.S. Department of State and EDLs (enhanced driver’s licenses) from the state of Washington contain RFID (radio-frequency identification) tags that can be scanned at border crossings …”
Extensive media coverage of research by CSE professor Yoshi Kohno and his students includes:
New York Times
Wall Street Journal
Read the research paper here (pdf).