TOKYO -- The mystery surrounding the North Korea's "sacred" bloodline, and who is next in the line of succession, has only grown since Kim Jong Un's public reemergence last week.
Kim's appearance put to rest the notion that he was gravely ill -- or even dead, but not to rumors that he suffers from chronic health problems. And the rising profile of his younger sister 32-year-old Kim Yo Jong has sparked speculation that she is being positioned to be next in line.
