Secretary of State Hillary Clinton shakes hands with South Korean President Lee Myung-bak, accompanied by President Barack Obama, during a state arrival ceremony on the South Lawn of the White House in Washington, Thursday, Oct. 13, 2011.  At left is Treasury Secretary Timothy Geithner.  (AP Photo/Evan Vucci)

Photo by: Evan Vucci

Secretary of State Hillary Clinton shakes hands with South Korean President Lee Myung-bak, accompanied by President Barack Obama, during a state arrival ceremony on the South Lawn of the White House in Washington, Thursday, Oct. 13, 2011. At left is Treasury Secretary Timothy Geithner. (AP Photo/Evan Vucci)