Keystone oil pipeline leaks in South Dakota, as Nebraska weighs XL

Keystone oil pipeline leaks in South Dakota, as Nebraska weighs XL  Reuters Keystone Pipeline Leaks 210000 Gallons of Oil in South Dakota  New York Times Keystone Pipeline Oil Spill Reported In South Dakota  NPR Keystone Pipeline leaks 210000 gallons of oil in South Dakota  CNN Crews cleaning up Keystone Pipeline leak in Marshall County  KSFYFull coverage