With all due respect, that is a question ultimately for policy-makers to settle on. I think what we can say is that our experience shows that efforts that you put into ensuring the efficiency and intermodality of the system tend to have rewards. As Randy pointed out, it's an entire supply chain. Spending a heck of a lot of effort on one particular mode and ignoring the touch-points with other modes and the transfer points makes it a less effective exercise.
On September 20th, 2016. See this statement in context.