details from the department of transportation that just really kind of illustrates the destruction that we're looking at here. those live pictures. according to the department of transportation all seven cars as we know were derailed. an engine two of the cars were upright, three were on their side one was nearly on the roof -- on its roof. and one was leaning very hard. so that's what the scene looks like behind us. >> one of the people working the scene relayed the idea that there's a whiplash effect to this and how the cars are configured and the type of damage on each actually tells the story to them about the translation of momentum off the tracks. you know what we call the derailment. obviously people are talking about speed. and there is a curve here. but two important factors. the first one is even though the trains can travel in excess of 100 miles an hour in in northern corridor corridor that probably wasn't the case here because this is a