In this photo taken on March 11, 2013, sisters Jenni Harrington, left, and Abbi Kleinschmidt walk past a wooden stick with a pink ribbon that marks the proposed route of the Keystone XL

 

              In this photo taken on March 11, 2013, sisters Jenni Harrington, left, and Abbi Kleinschmidt walk past a wooden stick with a pink ribbon that marks the proposed route of the Keystone XL
In this photo taken on March 11, 2013, sisters Jenni Harrington, left, and Abbi Kleinschmidt walk past a wooden stick with a pink ribbon that marks the proposed route of the Keystone XL pipeline on Jenni Harrington's property near Bradshaw, Neb. An unusual coalition of environmentalists, property rights advocates and ranchers is attempting to find new ways to derail the Keystone XL pipeline project that, more than ever, seems to be headed for approval in a nation eager for jobs and energy development. (AP Photo/Nati Harnik)