Just quickly, you mentioned this in your comments, and I want to perhaps get a better sense of it. Obviously airport pre-clearance determines how many destinations we can go to because of the infrastructure in airports. I wonder if you could perhaps re-explain it, just so I get a good sense of how it makes train travel smoother.
My understanding from what I've heard is that when you cross over the border, the schedule of the train is more predictable from start to end, because you don't have to stop in the middle.
Would that be correct?