If you're asking can we promise that we're never going to be up against capacity limits in specific times of the year or with specific unusual peaks, I can't say that. You can never size the system to meet every peak demand.
As I said, we're investing well over $2 billion a year to grow our network, whether it's longer sidings, whether it's more double tracking, whether it's more cars and locomotives. We are looking for ways to grow. It's in our interests to move as much as we possibly can. There's nothing to be gained by us being unable to meet the demand that's out there.
But certainly there are issues with regard to surge capacity and how many cars, locomotives, crews, you can have sitting around on the chance that you may need them for a small piece of the year.