North Korean defectors shout slogans as police block their planned rally on a road in Paju, South Korea, near the Demilitarized Zone, on Monday, Oct. 22, 2012. The activists launched balloons with anti-Pyongyang propaganda leaflets to the North despite a ban by the South Korean government. (AP Photo/Ahn Young-joon)

Photo by: Ahn Young-joon

North Korean defectors shout slogans as police block their planned rally on a road in Paju, South Korea, near the Demilitarized Zone, on Monday, Oct. 22, 2012. The activists launched balloons with anti-Pyongyang propaganda leaflets to the North despite a ban by the South Korean government. (AP Photo/Ahn Young-joon)