U.S. Energy Secretary Rick Perry, left, and Mexico's Secretary of Energy Pedro Joaquin Coldwell, talk after making a joint statement in Mexico City, Thursday, July 13, 2017. (AP Photo/Eduardo Verdugo)
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U.S. Energy Secretary Rick Perry, left, and Mexico's Secretary of Energy Pedro Joaquin Coldwell, talk after making a joint statement in Mexico City, Thursday, July 13, 2017. (AP Photo/Eduardo Verdugo)
