CNN At This Hour With Berman and Bolduan May 14, 2015 15:32:00
That the engineer missed something or operator error. help us understand what these other possibilities are. how can the engineer not be in some way responsible. >> i believe he is responsible. there's certainly a small possibility of a mechanical problem. when you've got a train going twice the maximum speed of 50 miles an hour, to me it's a no-brainer. it's intuitively obvious to the casual investigator the train was going way too fast. generally speaking that's going to be an engineer operating failure. >> so when it comes to his story, mayor, i want to get your take on this, the engineer's...