Video - National News
Posted on December 2, 2013 at 4:54 PM
Updated Monday, Dec 2 at 8:50 PM
A commuter train that derailed over the weekend, killing four passengers, was hurtling at 82 mph as it entered a 30 mph curve, a federal investigator said Monday. But whether the wreck was the result of human error or brake trouble was still unclear.
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