The governments should not spend billions on railroad construction since traveling by railroad seems to be a dying form of transportation. They would be better off spending those billions on a way to make cars more fuel efficient and more eco friendly since most people will still stick to cars or bikes then switch to railroad transportation.
The government already owes enough money, I do not think building rails will help in that aspect. We do not really need the rails and I feel like it will clutter our land more than provide us good transportation. We already have buses, and taxies, I do not think we need more.