Detailed text transcripts for TV channel - CNN - 20180204:23:34:00
Diagram the fatal mistake a switch on the railroad track locked with a padlock in the wrong position. listen to his description. >> i'm talking about a rail switch that can actually switch how the track goes from here to here. for whatever reason that switch was as they say in the railroad industry lined and locked. key to this investigation is learning why that switch was lined that way. because the expeck trags of course is that the amtrak would be cleared and would be operating straight down like this. >> reporter: so the key question for investigators, why, why was that switch locked and l...
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