It's fun to look at, but the trip from LA to New York would be about 13 hours -- and that's ignoring the time stopped at stations and assuming you can go 220mph the entire trip.

New York to some other city would be even worse. For example, New York to Seattle and you're approaching something like 20 hours.

I really love trains for short trips (NY to DC), but I just don't see the actual demand these long distance lines. Maybe we should just try and fix airport security and intra-urban mass transit instead.