Could I just add one point to this? It could in fact make the problem worse, as John stated. Victims have trouble enough right now when their social insurance number has been compromised, for example, dealing with that. Imagine if your biometric identity is compromised, and I can guarantee you it will be. None of these technical solutions is perfect. It will be an absolute nightmare for people to deal with identity theft of their biometric identifier.
On May 15th, 2007. See this statement in context.