FILE - In this Dec. 17, 2012 file photo, North Korean leader Kim Jong Un, right, and his uncle Jang Song Thaek, second from left, attend a ceremony to reopen the Kumsusan Palace of the Sun in Pyongyang. North Korea's propaganda machine has long kept alive the myth of a serene, all-powerful ruling dynasty that enjoyed universal love and support at home. In a single stroke last week, that came crashing down. In attempting to justify the execution of his uncle, who was also considered the North's No. 2 official, young leader Kim Jong Un has given the world a rare look behind the scenes of a notoriously hard-to-read government. (AP Photo/Ng Han Guan, File)