I think biometrics is very much a way of the future. Biometrics is something a number of countries have adopted, and I think it's inevitable over time that biometrics are going to become a global standard.
I think the dilemma of biometrics is, again, the protection of information, the rights of the individual. Having said that, my own estimate, in a paper I've written for limited distribution, is that DNA is going to become the standard base for biometrics used around the world.
Now, that has some scary implications for some, and certainly it may...but we ultimately need a universal standard that allows us to understand what a document from one country means in relationship to the person who is representing him or her self. What is that standard going to be?