Interior Secretary Ryan Zinke says the U.S. Navy can blockade Russia if needed to keep it from controlling energy supplies in the Middle East as it does in Europe.
Washington Examiner: US interior secretary says naval blockade is an option for dealing with Russia
Russian warship Grisha class Corvette 617 "Mirazh" passes the bosphorus on its way to Syria on Oct. 7, 2016 in Istanbul.