In this Thursday, Sept. 13, 2012 photo, a woman stands along the
bank of the Taedong River at the end of the day in Pyongyang,
North Korea. (AP Photo/David Guttenfelder)The Associated Press
In this Monday, April 16, 2012 photo, students wave the national
flags at an evening dancing party and performance at Kim Il Sung
Square to commemorate late President Kim Il Sung's 100th
birthday in Pyongyang, North Korea. (AP Photo/Ng Han Guan)The
Associated Press In this Sunday, April 15, 2012 photo, people
walk down a street after a large military parade in Pyongyang's
Kim Il Sung Square celebrating 100 years since the birth of the
late North Korean founder Kim Il Sung. (AP Photo/David
Guttenfelder)The Associated Press SEOUL, South Korea – For more
than a half-century, a mysterious caste system has shadowed the
life of every North Korean. It can decide whether they will live
in the gated compounds of the minuscule elite, or in mountain
villages where farmers hack at rocky soil with handmade tools.
It can help determine