There is a fair amount of mail, loaded in semis, that still travels by rail. I think it used to be called "Piggyback?" A lot of the USPS Express Mail is also subcontracted to FedEx and so may be in some of their trailers on flat cars.
The previous Federal Administration had a lot of members who believed that many of the service industries that the government operates, the mail and passenger railroads, would be better operated by private industry, those who could turn a profit doing it. The mindset was that it should not be taxpayer dollars paying for these services. It is strictly my opinion, though I am sure I am not the only one with it, that these Federal administrators would be willing to make those service industries fail to get their way.
