On the broader question, we very strongly believe that the first step is to get some reasonable information as to what is going on across the whole system: who does what to whom, what is the general ebb and flow, what are the rates, what have the rates been. It's very similar to the kind of work the grain monitor has been doing on grain transportation in the last two or three years, which has frankly been very helpful in addressing any disputes or issues within that sector of the transportation system.
We would very much like to see similar kinds of data out there, and we would argue that this data would give us the basis to address some of your questions. If we try to jump-start a cost study in the absence of that overall data, we think we'll become very confused very quickly and will be back to antidotes one more time.