In terms of the size of the fleet, we won't be looking at increasing that in the very short term because we think we're right-sized in terms of being able to move just like we did in the fall with the kind of incredible demand we were faced with, and we were able to do that. I don't want to keep harping on the weather, but that's what's impacting the fluidity here on the network.
Our locomotive fleet is now far more productive than it was before. So that's the advantage you get with that kind of a fleet. It's not a question just of the numbers in there; it's how efficient and how productive these things are.
On the car side, there's an opportunity to think about that because a lot of these cars are older cars in the fleet, as you well know. That's something in a marketplace that may be a little different from the one we're looking at now. Is there an opportunity to think about upgrading on the car fleet? I think that's something we're going to be having a look at as time goes by here.