U.S. Secretary of State Hillary Rodham Clinton, center, greets U.S. military personnel during a repatriation ceremony for the remains of  the U.S. servicemen, missing in action during the Vietnam War at the airport in Hanoi, Friday, July 23, 2010. (AP Photo/Kham, Pool)

Photo by: Kham

U.S. Secretary of State Hillary Rodham Clinton, center, greets U.S. military personnel during a repatriation ceremony for the remains of the U.S. servicemen, missing in action during the Vietnam War at the airport in Hanoi, Friday, July 23, 2010. (AP Photo/Kham, Pool)