Bob Mocny, directory of the department of Homeland Security's US-Visit program spoke today at Burton Catalyst Conference. The basic gist of the talk is that the US government is REALLY sold on the promise of biometrics as the key authentication factor in border security.
While the pure IdM techniques of biometrics are fascinating, from facial recognition, gait, or even typing style--I still find these techniques troubling. As Bruce Schnier (the Chuck Norris of computer security) points out, biometrics really are the oldest form of identity managment. Just watch dogs interacting on a walk and you'll get a great idea of some very primitive and smelly IdM. It's crude, but highly effective.
The most problematic biometric use case I've heard of is a case involving a rich Malaysian businessman, 4 thieves, and a very nice Mercedes S-Class with fantastic security...or so he thought. The thieves tried to steal the car only to find it required fingerprint identification to start. They got tired of carting the guy around so they cut off his index finger with a machete and went happily on their way with a gruesome authentication factor.
On a lighter note, I'm sure most people have seen the MythBusters episode where a fingerprint was successfully lifted via a gummy bear. Adam even used a simple photocopy to fool the machine.
As these metrics are collected, just imagine the terror if biometric data is released into the wild. If your credit card number lands in the hands of the Russian mafia, it sucks, but you can be issued a new number. You can't be issued a new thumbprint. As Popeye once said, "I am whats I am."
I think in some very limited and highly controlled applications biometrics are great (I'm thinking of the scene in Men In Black). But as this rolls out to the general public, random contractors at local airports, and outsourced datamarts--get ready for some identity fun...