the economist discusses the rise of biometrics for security...

] Even John Siedlarz, who co-founded the International
] Biometrics Industry Association to promote the sale
] and use of the technology, says that “recent
] congressional requirements are premature in my view.”

another choice quote :
] It is difficult to avoid the conclusion that the
] chief motivation for deploying biometrics is not
] so much to provide security, but to provide the
] appearance of security.

indeed.