The CSX train that derailed near Mount Carbon, W.Va., was going 33 miles an hour in a 50 mph zone, said Sarah Feinberg, acting head of the Federal Railroad Administration. Photo: Office of the Governor of West Virginia/Associated Press The crude-oil train that derailed and exploded in West Virginia on Monday was traveling well below the track’s speed limit, according to an onboard recording system, a federal official said Thursday. Sarah Feinberg, acting head of the Federal Railroad Administration, said the CSX Corp. train that derailed near Mount Carbon, W.Va., was going 33 miles an hour in a 50 mph zone. The cause of the derailment remains under investigation, and Ms. Feinberg said investigators would look at the condition of the rails, tanker car wheels and other factors that could have contributed to the accident. Investigators have so far examined outward-facing video footage from the train, as well […]