Busy spy crossroads such as Dubai, Jordan, India and many E.U. points of entry are employing iris scanners to link eyeballs irrevocably to a particular name. . . . For a clandestine field operative, flying under a false name could be a one-way ticket to a headquarters desk, since they’re irrevocably chained to whatever name and passport they used.
https://www.schneier.com/blog/archives/2012/04/biometric_pas...