Federal investigators believe an electronic problem may have caused Monday's deadly train crash in Washington DC, the Washington Post reports. Teesting has uncovered "anomalies" in a section of the Metro's automated control system, which senses train locations and sends speed commands, according to investigators.
Investigators are seeking to determine whether the automated system failed to detect the presence of a train plowed into by another in a catastrophic collision that killed nine people, including the driver. Markings on the track indicate that the driver hit the emergency brakes some 400 feet before the crash. Officials plan to run simulations to see if anything could have obstructed the driver's view of the other train.