[resu]

The public in East Asian countries see public transit in a different light than most North Americans, partly due to a lack of cars and the population density. They are probably the some of the few governments that can afford to foot the bill for such an unproven project with potential for dramatic benefits (and cost savings over building HSR), but also with the risk that the 10 billion or so could go down the toilet. Europe would be another ideal target, but I doubt any governments there have the appetite for big capex infrastructure projects right now.