will cause a train to go on the ground, something wrong with the track, something wrong with the equipment, something wrong with the way the train is handled. train handling, think of frankfurt junction, may of 2005 in philadelphia. something wrong with the equipment, think of the train that derailed into the pass of an oil train in north or south dakota a couple of years ago. those are the kinds of things that will cause a train to go on the ground. what ntsb and the railroad, amtrak are going to do, they'll go where the train stops, work their way backwards and find out where the train went on the ground. this is new track and new service. that track had to be inspected. so could it have been a rail br break underneath the train, something wrong with a wheel crack or an axle break as it's going there, i've heard reports