North Korean defector Park Sang-hak (right) releases a balloon bearing leaflets condemning North Korean leader Kim Jong-il and his son Kim Jong-un during a demonstration against the North at the Imjingak Pavilion near the border village of Panmunjom in Paju, South Korea, on Wednesday, Dec. 21, 2011. (AP Photo/Lee Jin-man)

Photo by: Lee Jin-man

North Korean defector Park Sang-hak (right) releases a balloon bearing leaflets condemning North Korean leader Kim Jong-il and his son Kim Jong-un during a demonstration against the North at the Imjingak Pavilion near the border village of Panmunjom in Paju, South Korea, on Wednesday, Dec. 21, 2011. (AP Photo/Lee Jin-man)