Railroad expert witnesses may give opinions regarding railroad accident reconstruction, railroad accident investigation, train wrecks, and railroad safety. In the news, a Union Pacific train struck a Burlington Northern Train about 120 miles south of St. Louis on Saturday causing a highway overpass to collapse. The locomotive and a dozen cars derailed which injured seven people. A post-crash fire was reported.
More info: http://www.ntsb.gov/investigations/2013/scott_city_mo/scott_city_mo.html.