Yesterday I've participated in a Chaosradio show about the recent international push towards biometrics in travel documents such as passports.
Our focus has been on the flaws of biometric systems, the current plans of the ICAO about MRTD's (Machine Readable Travel Documents), the risks involved and why they are not an applicable tool to prevent terrorist attacks.
If you're interested in listening to a recording of the show, it is available at the usual location, ftp.ccc.de.