I wrote upthread that technology would always find a way to maintain anonymity. And now some evidence...
http://armstrongeconomics.com/2015/01/03/iris-scan-beaten-with-cell-phone-cameras/Iris Scan Beaten with Cell Phone Cameras
A hacker has cracked at the Congress of the Chaos Computer Club, the thumbprint of Ursula von der Leyen and the iris of Chancellor Merkel.Therefore, the hacker used simple press photos of politicians. It appears that it is sufficient for a cell phone camera to fool biometric recognition systems, such as the Irsis scan.