Happened. There was an insulator fire on the track bed. Our units responded. When we arrived we found that metro personnel had already extinguished the fire with an extinguisher. We went down to confirm that confirm that power was shut down to the third rail. There was light smoke conditions in the station so we closed the station to pedestrian travg. Ffic. There were trains single tracking through the station but not letting people off. He just said that the station was closed right now and theyre rerouting people and theres a bus to take us to roslyn. Reporter now, that was closed, the station was closed for about an hour. It is reopened now with tracks running in both directions, both on the orange and silver lines, and there were no injuries here today. Thats the latest at courthouse station in arlington, virginia, chris gordon news4. Now were going to hear from transportation reporter adam tuss about a major revelation from the National Transportation safety board about that Lenfa