"The reason railroads can't meet their potential is they don't receive the proper priority and funding."
Really? Actually, railroads receive more funding per thousand passenger miles than any other mode of transportation. Highways actually produce a slight revenue for the government. See
http://www.bts.gov/publications/federal_subsidies_to_passenger_transportation/html/figure_02.html and
http://www.bts.gov/publications/federal_subsidies_to_passenger_transportation/html/executive_summary.html .