11/16/2011 - President Barack Obama greets Airmen and their families as he prepares to depart Joint Base Pearl Harbor-Hickam, Hawaii, following the Asia-Pacific Economic Cooperation conference in Honolulu on Nov. 15, 2011. The Airmen who met President Obama were selected by base leaders based on merit and a job well done. (U.S. Air Force photo/Senior Airman Lauren Main)

11/16/2011 - President Barack Obama waves goodbye to Airmen and local media as he prepares to depart Joint Base Pearl Harbor-Hickam, Hawaii, following the Asia-Pacific Economic Cooperation conference in Honolulu on Nov. 15, 2011. President Obama met with military members and base leaders prior to his departure. (U.S. Air Force photo/Senior Airman Lauren Main)

11/16/2011 - Adm. Robert Willard, (right) the U.S. Pacific Command commander, Gen. Gary North, (middle) the Pacific Air Forces commander, and Col. Sam Barrett, the 15th Wing commander, render a salute as Air Force One taxis for departure from Joint Base Pearl Harbor-Hickam, Hawaii, Nov. 15, 2011. President Obama was in Hawaii for the Asia-Pacific Economic Cooperation conference. (U.S. Air Force photo/Senior Airman Lauren Main)