Trump backs 'Keystone Light' pipeline from Canada to Oklahoma — bigger than Keystone XL

The Trump administration is backing a proposed tar sands pipeline running from Canada to Oklahoma, unofficially dubbed "Keystone Light." The project would be even larger than the previously blocked Keystone XL pipeline, prompting critics to call it "Keystone XXL." Environmental concerns are expected to surround the proposal, echoing the decade-long controversy over its predecessor.