The thing is that if you looked only in the US you'd have to conclude that there won't be any new trains in the west, because they are ruinously expensive. But at least half the European countries still have the institutional knowledge of how to lay down tracks. Nuclear is similar, except as far as I can tell no one in the west still knows how to do it routinely. And if you start from an insufficient institutional basis you'll get McKinsey'd to death. But that is true about everything.