Police officers block an activist in a car carrying anti-North Korea leaflets in Paju, near the Demilitarized Zone, in South Korea on Monday, Oct. 22, 2012. South Korea banned the activists Monday from entering a border area where they planned to launch anti-Pyongyang leaflets into North Korea, an unusual move that the activists likened to surrender. (AP Photo/Ahn Young-joon)

Photo by: Ahn Young-joon

Police officers block an activist in a car carrying anti-North Korea leaflets in Paju, near the Demilitarized Zone, in South Korea on Monday, Oct. 22, 2012. South Korea banned the activists Monday from entering a border area where they planned to launch anti-Pyongyang leaflets into North Korea, an unusual move that the activists likened to surrender. (AP Photo/Ahn Young-joon)