CNN Wolf May 13, 2015 17:16:00
Correct, but the first thing they're going to look at is how fast was this train going for the track it was on. >> if it was going too fast around that curve, is that a human error, conductor, the engineer or some other problem potentially? >> it could be any number of things, but you start with human performance. was the conductor, was the engineer operating the train appropriately leading up to the turn was he applying the brakes ape lately was there any kind of failure in the braking system that would have prevented him from entering the turn at the correct speed. those will, you know the e...