also today, investigators began a more detailed inspection to each of the railroad cars and a locomotives. these cars were moved late yesterday to secure rail yards, and investigators spent the day documenting and inspecting the mechanical systems. in addition, we're continuing to continue -- we're continuing signal testing and to date, no anomalies have been found. the operations group continued interviewing the members of the crew today, including the engineer whose interview is currently under way. in addition, they interviewed first responders to the accident scene. as required by federal regulation, following the accident, each member of the crew was drug and alcohol tested. the results from the alcohol breath tests were all negative. the results of the other tests are still pending. with regard to the engineer, he