Because we have a fully integrated rail network between Canada and the United States, because both Canadian railways operate extensive track in the U.S., and because they're equipping their locomotives to meet the American standards, I think we have to observe that integration.
What's done in Europe is useful. The German technology I mentioned, Indusi, is used on Ottawa's O-Train, the only federal railway that uses it. It's also used on light-rail systems in Calgary and Edmonton, for instance, to provide safety.
But we can't go and buy a European system off the shelf, because it would not work across the interface between Canada and the U.S.