have been spent to the hospital and some are still there, and the big headline is not everybody has been accounted for, and that's going to slow the investigation, because right now they are still bringing in heavy equipment behind us to move some of the cars and see what is underneath them and see what is still among a lot of the twisted wreckage here. many of the people working the scene overnight, and at least some of them said to us they have never seen anything like this carol. it's going to take time in the investigation, and information is going to be slow. >> i would assume the engineer and the conductor survived the crash and i would assume investigators are talking with them? >> reporter: we are told they are able to interview the crew and they also have a black box, not unlike what we hear about in planes that will be able to tell them about speed, and speed is an obvious consideration and there's things cutting against that. while these trains in the tphaegs northeast corridor they can go