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President Barack Obama arrives for a speech at the TransCanada Stillwater pipe yard in Cushing, Oklahoma. Obama’s rejection of the Keystone pipeline’s original route followed concerns spills would endanger the Ogallala aquifer underneath the permeable Sand Hills region in Nebraska. Photo: Mandel Ngan/AFP via Getty Images

President Barack Obama arrives for a speech at the TransCanada Stillwater pipe yard in Cushing, Oklahoma. Obama’s rejection of the Keystone pipeline’s original route followed concerns spills would endanger the Ogallala aquifer underneath the permeable Sand Hills region in Nebraska. Photo: Mandel Ngan/AFP via Getty Images

January 18, 2013
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