I guess I'm meaning that the Dukakis et al argument never focuses on regional rail. And, in my mind, a NSRL connection would be a nice to have in a Regional Rail system, but having a Regional Rail system isn't dependent on having a NSRL connection. Going back to the 10-20 billion project budget, I'd choose existing system electrification and crossing eliminations over NSRL if given that choice.Remember, Regional Rail is about much different usage patterns than conventional Commuter Rail 9-5 in/out to the burbs. It is getting people to use rail for a host of other trips enabled by better, frequent connectivity.