Tribes in U.S., Canada unite against Keystone XL pipeline

BISMARCK, N.D. – Tribes representing tens of thousands of indigenous people in the U.S. and Canada will be signing a declaration against the planned Keystone XL oil pipeline. Leaders of the Blackfoot Confederacy in Canada and the Great Sioux Nation and Ponca tribe in the U.S. plan to sign their declaration at a ceremony Wednesday at the Glenbow Museum in Calgary, where pipeline developer TransCanada Corp. is based. -- More...