I'll provide perhaps a partial answer to the question because it starts to move a little into policy choices, and of course, those policy choices reside with ministers.
What I will do is reiterate what the ministers have said here and have said publicly, which is that the one million tonne objective was, in their eyes, ambitious but reachable. It was established in an attempt to surge capacity towards what was clearly, objectively, the most pressing problem facing the rail network, which was moving grain because of the extraordinary crop and because of the winter conditions. There was an attempt to balance that with the needs of other commodities and not to set that bar so high that transportation of other commodities would be affected.
That was the policy approach which the government adopted and so far, as we've seen, the railways appear to be meeting the targets that were set for them.