Investigators look for cause in O'Hare train derailment

Credit: MGN Online

Investigators look for cause in O'Hare train derailment

March 25, 2014 Updated Mar 25, 2014 at 11:25 AM CDT

Investigators are looking into whether faulty brakes, signals or human error may have caused a Chicago public-transit train to jump the tracks and scale an escalator at O'Hare International Airport early Monday morning.

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