Okay, merci.
I would just draw this distinction. I think, again, one has to be very careful when talking about the nature of exact security measures and about exactly how each one works and so on. One has to be careful.
I would say broadly that the security we have in Canada is more robust, perhaps, than security elsewhere. I don't how many have travelled internationally. In terms of the machines, they're of various natures. There have been instances when, internationally, people who were supposed to do screening looked the other way, and people got on planes and the planes went down. There have been those instances.
What this would do is say to air carriers, here you are, you're the air carriers, you are taking responsibility for this flight; join us, work with us, work in partnership in relation to keeping certain people off the plane. But relatively speaking, the more security you have.... And I agree with you there. Each layer has a different function, but they all work together; they all benefit in reinforcing one another.
One thing, for instance, under this system and so on is that there is a moment when you have a person, their ID, their boarding pass, and the fact that they have a seat on the plane, and it all comes together at one point. It's just very basic common sense. This is the person who is supposed to be getting on the plane. They have valid ID.
It is an additional help, but I would put it to you that internationally it could even be, relatively speaking, of even greater help, given the different level of robustness of a particular layer in a particular place.