North Koreans walk with shovels for harvesting crops behind a border fence separating the North Korean town of Sinuiju and the Chinese border city of Dandong November 22, 2009. U.S. President Barack Obama's trip to Asia may increase pressure on North Korea to return to stalled nuclear talks, but it is a long way from ensuring that Pyongyang will take permanent disarmament steps.
REUTERS/Jacky Chen (NORTH KOREA MILITARY POLITICS)