Chicago train crash

Emergency personnel investigate the scene where dozens of people were taken to hospitals after a CTA train ran head-on into another train that was stopped at a Blue Line station in Forest Park, Illinois, Monday, September 30, 2013. (Chuck Berman/ Chicago Tribune/MCT via Getty Images)
Emergency personnel investigate the scene where dozens of people were taken to hospitals after a CTA train ran head-on into another train that was stopped at a Blue Line station in Forest Park, Illinois, Monday, September 30, 2013. (Chuck Berman/ Chicago Tribune/MCT via Getty Images)

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    Chicago train crash

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An empty train slams into another.