http://twitter.com/#!/Big_Liebowski/status/472918140372783105 Accidents involving trains hauling oil seem to happen with relative regularity, causing environmental damage and hazardous conditions for local populations. With that in mind, Mother Jones asked a simple question: http://twitter.com/#!/MotherJones/status/472913043446583296 Why? This was a job for Captain Obvious! http://twitter.com/#!/konabianca/status/472916455949082624 http://twitter.com/#!/poo_picker/status/472916941087453185 http://twitter.com/#!/Calle_Elefante/status/472919320205336576 http://twitter.com/#!/ROCKInTheUSSA/status/472920439912534017 http://twitter.com/#!/joethefatman1/status/472936034322227201 http://twitter.com/#!/MartiniShark/status/472922957460033536 When in doubt, just go to the old standby:…

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