Secretary of State Hillary Rodham Clinton, center right, is escorted by Han Duck-Soo, South Korean ambassador to the U.S., past ceremonial honor guards as she arrives at the Seoul Military Airport in Seongnam, South Korea, Wednesday, July 21, 2010. (AP Photo/Paul J. Richards, Pool)

Photo by: Paul J. Richards

Secretary of State Hillary Rodham Clinton, center right, is escorted by Han Duck-Soo, South Korean ambassador to the U.S., past ceremonial honor guards as she arrives at the Seoul Military Airport in Seongnam, South Korea, Wednesday, July 21, 2010. (AP Photo/Paul J. Richards, Pool)