Just about any passport issued in the past decade or so has a machine-readable text strip on the photograph page. When the passport control officers take your passport they don't just compare your passport photo to your face -- they swipe the passport.
The RFID chip just allows them to store more data and get at it faster than the older machine-readable passports. The information that your passport (and its bearer) have arrived in country X is still available to country X's immigration database the moment you're past the checkpoint.
(Other risks of RFID passports include tracking or cloning, if the owner isn't keeping it in a tinfoil wallet or if the issuing agency's private key gets leaked. See also discussions on comp.risks passim.)
Just about any passport issued in the past decade or so has a machine-readable text strip on the photograph page. When the passport control officers take your passport they don't just compare your passport photo to your face -- they swipe the passport.
The RFID chip just allows them to store more data and get at it faster than the older machine-readable passports. The information that your passport (and its bearer) have arrived in country X is still available to country X's immigration database the moment you're past the checkpoint.
(Other risks of RFID passports include tracking or cloning, if the owner isn't keeping it in a tinfoil wallet or if the issuing agency's private key gets leaked. See also discussions on comp.risks passim.)