Energy independence and energy security are really two different things.
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About Rex Tillerson
Rex Tillerson was u.s. secretary of state from 2017 to 2018. Rex Wayne Tillerson is an American energy executive and former diplomat who served as the 69th United States secretary of state from 2017 to 2018 in the first administration of Donald Trump. From 2006 to 2016, he was chairman and chief executive officer (CEO) of ExxonMobil. Read more on Wikipedia →