South Korea's President Lee Myung-bak (R) and his wife Kim Yoon-ok wave at the Seoul Airport in Seongnam, south of Seoul September 20, 2009, before they leave for the United States to attend the G-20 summit. REUTERS/Jun Soo-young/Yonhap (SOUTH KOREA POLITICS) NO SALES. NO ARCHIVES. SOUTH KOREA OUT. NO COMMERCIAL OR EDITORIAL SALES IN SOUTH KOREA