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Associated Press
Sen. John Hoeven, R-N.D,  walks toward a illustration of the Keystone Pipeline and proposed expansions, after a news conference on Capitol Hill in Washington, Wednesday, Jan. 23, 2013. A key approval of a revised route for the Keystone XL oil pipeline from Canada to the U.S. Gulf Coast puts the long-delayed project back in the hands of the U.S. government.  (AP Photo/Jacquelyn Martin)

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