James Carville : Louisiana has been abused and neglected too long . He says the region 's oil industry and ports have served the nation . 00:52:08 Flooding from Katrina , BP leak were mostly-preventable man-made disasters , he says .
James Carville : Louisiana has been abused and neglected too long . He says the region 's oil industry and ports have served the nation . Marshlands have been harmed by industry , hurting fishing , he says . Flooding from Katrina , BP leak were mostly-preventable man-made disasters , he says .