Biometrics is a tool that we've used for a long time. A passport photo is a biometric tool. So in the sense of saying that we use biometrics—fingerprints are used commonly in the immigration system as it is now—we do use biometrics.
I think the question you're asking is whether imposing a biometric requirement on every person who enters and leaves Canada is a worthwhile security trade-off. I think that's the much more fundamental question that this committee needs to ask. There's an enormous cost, not just in terms of the economic cost but in terms of the trade-off that will be involved in imposing those requirements.
Is it a tool that can be used to solve the problems that you're describing? Undoubtedly it can. Is it worth the trade-off? I think that's a different question.