Why Kim Jong Un's daughter may already be his next-in-line

North Korean leader Kim Jong Un hasn't even turned 40, but he may have already picked his young daughter as his successor. Here, former NHK World Editor-in-Chief Ikehata Shuhei explains why the appearance of a white horse at a recent parade suggests she's the "chosen one". Ikehata currently serves as a director at a Japan-based think tank.