@CNN: Positive Train Control technology that slows trains if going too fast was not activated on tracks in Washington derailment, Amtrak says https://t.co/HKnalWjDZG https://t.co/IoqGpZnGa8

December 18, 2017 / The Arbiter / CNN

@CNN: Positive Train Control technology that slows trains if going too fast was not activated on tracks in Washington derailment, Amtrak says https://t.co/HKnalWjDZG https://t.co/IoqGpZnGa8

Positive Train Control technology that slows trains if going too fast was not activated on tracks in Washington derailment, Amtrak says https://t.co/HKnalWjDZG http://pic.twitter.com/IoqGpZnGa8

— CNN (@CNN) December 18, 2017

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