Native Americans including Melina Laboucan, fifth from left, and Crystal Lameman sixth from, from the Cree Nation of Alberta, Canada, march with other protestors from the National Mall

 

              Native Americans including Melina Laboucan, fifth from left, and Crystal Lameman sixth from, from the Cree Nation of Alberta, Canada, march with other protestors from the National Mall
Native Americans including Melina Laboucan, fifth from left, and Crystal Lameman sixth from, from the Cree Nation of Alberta, Canada, march with other protestors from the National Mall to the White House in Washington calling on President Barack Obama to reject the Keystone XL oil pipeline from Canada, as well as act to limit carbon pollution from power plants and “move beyond” coal and natural gas, Sunday, Feb. 17, 2013. (AP Photo/Manuel Balce Ceneta)