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Mechanical error may have caused French crash

Associated Press
Mechanical error may have caused French crash

A railway worker walks next to a train which derailed at a station in Bretigny-sur-Orge, south of Paris, Saturday, July 13, 2013. An official on Saturday said a faulty rail joint may have caused a train derailment outside Paris that left six people dead and injured dozens. (AP Photo/Thibault Camus)

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