WASHINGTON, Sept. 20 -- The U.S. Air Force issued the following news: * * * Air Force Marathon showcases endurance, spirit, legacy * WRIGHT-PATTERSON AIR FORCE BASE, Ohio (AFNS) -- On the grounds of the National Museum of the U.S. Air Force, more than 7,600 runners representing 50 states and 11 foreign countries, gathered Sept. 20 to take part in the 29th annual Air Force Marathon. Lt. Gen. Linda Hurry, Air Force Materiel Command deputy commander, welcomed participants before the start of t  more