Reports that Kim Jong Un has chosen his teenage daughter as successor raise new questions about the future of power in North ...

Seoul's assessment comes as North Korea is preparing to hold its biggest political conference later this month, where Kim is expected to outline his major policy goals for the next five years.

The Kim Ju-ae phenomenon -- that she will become Kim Jong Un's successor-- is a subject for rigorous analysis, definitely not a foregone conclusion.

South Korea's spy agency believes North Korean leader Kim Jong Un is preparing his daughter, Kim Ju Ae, to be his successor, with signs she's already providing policy input.