US Government Begins Issuing E-Passports
The RFID tags contain the name, gender, birth date, place of birth, and a digitized photo of the passport holder. Because they contain such personal information, e-passports are controversial because critics contend that the tags can be cracked and their information read surreptitiously. However, according to the US State Department's website outlining the US Electronic Passport, the e-passports are "protected from alteration by the latest digital signature technology" and that they "will not issue passports incorporating integrated circuits until privacy-related concerns have been addressed." The State Department "will share more information about these measures once testing is completed."
Source: RFID Update