Rice had no program for mandatory genetic testing but it had doctors, which presumably should know what genetic characteristics cause a higher risk for life threatening consequences during such a workout.
Sumwalt said the NTSB investigation to determine a likely cause will include routine testing of railroad employees for drugs and alcohol, testing of the track and rail signals and examinationof the video footage from the front of the train.
Authorities in Europe have said there is no immediate causefor health concerns, but government officials in the UK and Sweden are testing the meat to be sure there is no danger to public health.