and how has managed to bring an american president to his doorstep. ♪ december 28th, 2011. kim jong-un had just inherited the cruelest, most repressive dictatorship on earth. his father kim jong-il was dead from a heart attack. in icy pyongyang, tens of thousands lined the streets. for many mourners, it was a chance to catch a glimpse of their new leader. >> people believed he's too young. he's too inexperienced. >> there were real fears that kim jong-un still in his 20s was not up to the job. >> he looked like a boy. there he is sobbing over his father's casket. >> some doubted that he could