On Tuesday, Aug. 21, 2012, officials inspect part of a CSX freight train that derailed alongside a parking lot the night before in Ellicott City, Md. (AP Photo/Patrick Semansky)
On Tuesday, Aug. 21, 2012, officials inspect part of a CSX freight train that derailed alongside a parking lot the night before in Ellicott City, Md. (AP Photo/Patrick Semansky)
Officials stand underneath a bridge where part of a CSX freight train derailed on Tuesday, Aug. 21, 2012, in Ellicott City, Md. (AP Photo/Patrick Semansky)
Officials stand underneath a bridge where part of a CSX freight train derailed on Tuesday, Aug. 21, 2012, in Ellicott City, Md. (AP Photo/Patrick Semansky)
