I can take that one as well, if you like.
The short answer is yes, as much of the growth in the North Dakota Bakken oil in the U.S has gone up on the rail system. It has been building their loading facilities. As we look here in western Canada to loading facilities and unloading facilities in other parts of Canada, clearly the state-of-the-art equipment that's going in for the new facilities should be put in place, and that's what we're looking for, to make sure that's in place.
On the evaluation of the tank cars, again, our recommendation is exactly that. The newer tank cars are being built to the higher standard and are coming on service. All we're suggesting is, on a transition basis, to take some of the lower volatile, heavier crude oils and use them to transition out into the older cars, and clearly put the newer cars being built to the newer standards into the higher volatile service safety mechanisms.