Insane that the US has put all its eggs into one basket. One bad event and interregional passenger travel completely breaks down. Looks like it would be wise to invest in a more resilient mode of transportation.
The US should definitely have more rail--and higher speed rail--but that is only practical in select areas with enough population density. Many of the people in those areas could drive to where rail would service.
On the other hand, a high speed train can do 200 mph (320 km/h) in actual operation. That would be a six hour train ride. A plane is faster, but once you add all the airport overhead, the train might actually be competitive.
Very coincidentally, their fleet size is 737.