Detailed text transcripts for TV channel - MSNBC - 20150514:00:49:00
Been doing for over 100 years, right? >> without a doubt. its evolved from train safety 100 years ago, where there were no signals, trains relied on their schedule their schedule told them where they should be. if the schedule said you werent 130ezed to be there, the train that was supposed to be there just assumed you werent. >> now we have signals, and those signals help -- its a big improvement, and then of course, were evolving into positive train control, where we want trains to talk to one...
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