When it’s this cold, Chicago sets its train tracks on fire
(CNN) -- Chicago residents are a hearty bunch. They know how to keep things moving when the weather turns cold. But what about when it's this cold? Like wind-chill-of-50-below-zero cold? Getting around is lot tougher. When that happens, the folks who keep the commuter trains running in the Windy City employ a hot idea: They set the train tracks on fire.
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