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Photo by: J. Scott Applewhite

FILE - In this Nov. 6, 2013 file photo, Sen. John Cornyn, R-Texas speaks on Capitol Hill in Washington. Cornyn says the Defense Department is canceling plans to buy additional cargo helicopters from the Russian arms export agency that is a top supplier of weapons to Syria's military forces. The additional 15 Mi-17s were to be purchased next year at a cost of $345 million and then delivered to Afghanistan's national security forces. (AP Photo/J. Scott Applewhite, File)

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