Keystone XL Pipeline Protest 03/03/2014 940 × 705 National Review: Keystone XL pipeline protesters tie themselves to White House fence as police arrest dozens of people, photos Demonstrators who are strapped to the White House fence in Washington, chant during a protest against the proposed Keystone XL oil pipeline, Sunday, March 2, 2014. They were later arrested. (AP Photo/Manuel Balce Ceneta)