Civil rights protester Julian Bond, left, and Sierra Club Executive Director Michael Brune, second from left, gather with activists in front of the White House in Washington, Wednesday, Feb. 13, 2013,... more 
Civil rights protester Julian Bond, left, and Sierra Club Executive Director Michael Brune, second from left, gather with activists in front of the White House in Washington, Wednesday, Feb. 13, 2013, as prominent environmental leaders tied themselves to the White House gate to protest the Keystone XL oil pipeline. (AP Photo/Ann Heisenfelt) less 
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Associated Press | Photo By Ann Heisenfelt
Wed, Feb 13, 2013 2:25 PM EST