Just maybe in general terms and my colleagues can talk about a more specific link to rail. The beyond the border initiative agreement between President Obama and Prime Minister Harper is a big driver of a lot of security-related investments and efforts over the last few years. Of course, one aspect of that is information sharing, working together also on different threat assessments, investments to make the border safer, to push the border out from a permanent perspective.
So a lot of the work we're doing with the U.S. is sort of driven by very concrete objectives linked to the border action plan. The action plan has a number of specific metrics, deliverable dates, and so on. It has really helped energize and open a lot of doors for us with the U.S. and I think vice versa. So that's a big part at least from the national security policy and information-sharing point of view. That's a big piece of the puzzle for us.