> which is what this is, it's not like they could tear out New York city and build fresh then put it all back I don't understand why not? Japan's high speed ra

> which is what this is, it's not like they could tear out New York city and build fresh then put it all back I don't understand why not? Japan's high speed rail was added into multiple major cities without tearing up the whole city. What did they do that can't be done in the US?