SEOUL, SOUTH KOREA - DECEMBER 17:  South Korean conservative protesters burn an effigy of North Korean leader Kim Jong-Un during an anti-North Korea protest marking the second anniversary of former North Korean leader Kim Jong Il's death on December 17, 2013 in Seoul, South Korea. The tension is heightened in South Korea since the report that North Korea has executed Jang Song-Thaek, Kim Jong Un's uncle on December 13, 2013. On December 17, 2013 North Korea also commemorates two years since the death of former leader Kim Jong-il.  (Photo by Chung Sung-Jun/Getty Images)