[AntiGuv]

The RFID Hacking Underground: They can steal your smartcard, lift your passport, jack your car, even clone the chip in your arm. And you won't feel a thing. 5 tales from the RFID-hacking underground

Dutch RFID e-passport cracked -- US next?

RFID Passports: Improved, but still flawed?

Opps! This last one does indicate that there will be encryption - my info was out-of-date - so at least there's that. Whatever the case, here's what someone could pick up if they decrypt the data:

Now, with that out of the way: What the State Department is proposing is that the RFID-enabled passports carry at least a duplicate copy of all the passport holder's personal information, and a digitized photograph, encoded into the chip. They've left expansion room for, supposedly, biometric data such as a fingerprint or retinal scan.

With regard to the latter, all they need to settle on is what kind of biometric data they want to require.

[AntiGuv]

Global RFid Passport Encryption standard hacked within two hours by a Dutch company

[MissAmericanPie]

Or personal data that only you would know, like, the name of your dog, your wife's maiden name, the nickname for your hampster, the name of your great aunt's second cousin once removed.