Briefly, regarding the environment, I'll make a couple of points.
First, I think the recent harmonization will be very helpful. If there are requirements, at least they won't be duplicating each other between governments.
Secondly, the degree to which environmental assessments will inhibit the front-end of the project will very much depend on the corridors. For example, it was mentioned that perhaps you could use some existing corridors for rail. There are corridors for existing transmission systems and there are corridors, frankly, for highway systems that could all be possible candidates as corridors for high-speed rail. To the degree to which you can do that, you would significantly mitigate the environmental risk.