A photograph of former North Korean founder Kim Il-Sung hugging his son Kim Jong-il, which was taken in April 1946, is displayed at the Unification Hall at the West Seoul Life Science High School in Seoul in this July 17, 2009 file photo. North Korean leader Kim Jong-il died on December 17, 2011 state television reported on December 19, 2011. An announcer said he died of physical and mental over-work. REUTERS/Handout/Files (SOUTH KOREA - Tags: POLITICS OBITUARY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS
Kim Il-sung (L), founder of North Korea, chats with his son Kim Jong-il at a mass rally to celebrate the foundation of the communist country in Pyongyang in this September 1983 photograph. North Korean leader Kim Jong-il died on December 17, 2011, state television reported on December 19, 2011. An announcer said he died of physical and mental over-work. REUTERS/Handout/Files
(FILES) Korean Central News Agency (KCNA) released on February 6, 1992 this undated photograph of Kim Jong-Il (C), son of North Korea's President Kim Il-Sung and the country's heir-apparent visiting a mine during an "on-the-spot" guidance tour. North Korean leader Kim Jong-Il has died aged 69 of a heart attack, state media announced on December 19, 2011, plunging the impoverished but nuclear-armed nation into uncertainty amid a second dynastic succession. AFP PHOTO