Maybe I can answer that question in the way of engagement, actually.
We are very much engaged with the U.S. CBP in terms of our technical advancements on both sides of the border. We meet at the national headquarters level on a regular basis and look at different ways we can use different types of technology. For the CBSA, we have a lab, and that lab is one of the main entities that has been driving the secure corridor.
In terms of biometrics, we have tested biometrics with the NEXUS card when you arrive at airports. You get an iris scan, and that's one of the features we've been using.
We are continuously testing the use of biometrics, and I see that as the advancement going forward. It's just not there yet. I'm not a technological expert, so I can't give you the specifics around that, but I can tell you that we are looking at different options.