The railroad industry was one of the first to disrupt how the world worked with technology, but lately, innovation in freight railroading has amounted to little more than longer and longer trains. That has led many railroads to abandon shorter routes, ceding a chunk of the $1 trillion surface freight market to trucking companies. But as diesel prices reach record highs, some of those very trucking companies are going bust, leaving a hole in the market. Recently, at least 16 trucking companies we...