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Keystone XL pipeline
U.S. Rep. Ed Markey (D-MA) speaks during a hearing on the Keystone XL pipeline before the Energy and Power Subcommittee of the House Energy and Commerce Committee.

U.S. Rep. Ed Markey (D-MA) speaks during a hearing on the Keystone XL pipeline before the Energy and Power Subcommittee of the House Energy and Commerce Committee.