Kim Getting a Haircut?

A second North Korean soldier has defected to the South. The other, a month or so ago, was shot as he fled on foot across the DMZ. He was found to be underweight and plagued with intestinal worms. He was the first DPRK soldier to defect in years. Now there has been another. Trump promised that Kim Jon un would be under pressure that he had never experienced before to end his nuclear program. Unprecedented sanctions have been imposed by the World on the DPRK. Might it be that Kim is under threat of regime change from within?