Reference News Network 9 month 27 reported according to the United States, "air force times" web site on September 24 Daily said, the air force said the pilot, defend the F-35 fighter. An internal document leaked from the US Air Force Secretary Deborah Lee James's office shows that the air force's leaders have been trying to explain why we need F-35 fighter aircraft ". This is marked "can not be open" words, a 8 page internal memo to give the pilot a step...