will on a transits and take multiple pictures from multiple anglesing of the railcar allowing us after we leave here after the railcars are moved, we can virtually walk through those carsing look at thing, take dimensions, and walk through it on our computer desktop. >> fascinating. is there anything you've learned from the black boxes or the front-facing video camera you can tell us? >> at this point, there's nothing new to report but i'm very optimistic we will be able to provide information later today. >> i want to play for you some of what philadelphia mayor michael nutter said referring to the engineer. take a listen. >> clearly, he was reckless and irresponsible in his actions. i don't know what was going on with him. i don't know what was going on in the cab, but there's really no excuse that could be offered. literally, unless he had a heart attack. >> a short time ago, mayor