U.S. President Barack Obama seen walking alone down the Badaling section of The Great Wall of China in Beijing, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/DIEGO AZUBEL
U.S. President Barack Obama and his entourage walk down the Badaling section of The Great Wall of China in Beijing, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/DIEGO AZUBEL
U.S. President Barack Obama's motorcade leaves the Badaling section of The Great Wall of China on the way to the airport in Beijing, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/DIEGO AZUBEL
A member of the PLA (Peoples Liberation Army) stands by a helicopter of China's Police force at the entrance to the Badaling section of The Great Wall of China moments before the arrival to U.S. President Barack Obama to the touristic site in Beijing, China, 18 November 2009. EPA/DIEGO AZUBEL
U.S. President Barack Obama (C) and part of his entourage walk down the Badaling section of The Great Wall of China in Beijing, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/DIEGO AZUBEL
U.S. President Barack Obama is seen walking on the Badaling section of The Great Wall of China in Beijing, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/DIEGO AZUBEL
US President Barack Obama takes in a view of the Great Wall of China in Badaling, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/SHAWN THEW
U.S. President Barack Obama seen walking alone down the Badaling section of The Great Wall of China in Beijing, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/DIEGO AZUBEL
U.S. President Barack Obama seen walking alone down the Badaling section of The Great Wall of China in Beijing, China, 18 November 2009. President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/DIEGO AZUBEL
US President Barack Obama takes in a view of the Great Wall of China in Badaling, China November 18 2009. Later in the day President Obama will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/SHAWN THEW
US President Barack Obama takes in a view of the Great Wall of China in Badaling, China 18 November 2009. Later in the day President Obama will will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/SHAWN THEW
US President Barack Obama takes in a view of the Great Wall of China in Badaling, China 18 November 2009. Later in the day President Obama will will fly to South Korea, on 18 November 2009, for the last stop of his Asia tour. EPA/SHAWN THEW