Activist No Su-hui (center) shouts, "Long live reunification!" in front of North Korean officials and soldiers before crossing the demarcation line between North and South Korea where South Korean officials (in background) were waiting for him, at the Demilitarized Zone at Panmunjom, Korea, on Thursday, July 5, 2012. South Korean officials immediately detained the activist for making an extended trip to Pyongyang without South Korean government approval, as required by law. (Associated Press)

Photo by: Kim Kwang Hyon

Activist No Su-hui (center) shouts, "Long live reunification!" in front of North Korean officials and soldiers before crossing the demarcation line between North and South Korea where South Korean officials (in background) were waiting for him, at the Demilitarized Zone at Panmunjom, Korea, on Thursday, July 5, 2012. South Korean officials immediately detained the activist for making an extended trip to Pyongyang without South Korean government approval, as required by law. (Associated Press)