Wheel Failure News Today : Breaking News, Live Updates & Top Stories | Vimarsana

The major causes as well. we have a curve and until they get the event recorder analyzed we will not know what the speed of the train was. underlying all of this is fatigue. this has been a major concern for congress the ntsb and certainly the workers. they are not able to get sufficient rest throughout their workweek. those are the meajajor areas that i think will looked upon by ntsb and will probably know by tomorrow whether there was a track defect or a wheel failure. that is something they will be able to determine almost immediately. >> all right. larry mann thank you very much.

We know that sectionix people were taken to the hospital in critical condition. we know that 53 people were brought to the hospital. they are considered walking wounded. the ntsb is going to arrive tomorrow morning and that they will take over this investigation. but as you can see, it's a dark night outside of philadelphia as workers try to piece this whole thing together chlth. let's go back to larry mann a train expert. just to recap, what are the possibilities of what might have happened here tonight? >> well because of the reports of vibration and heavy shaking just prior to the derailmen...