Is Kim Jong Un's sister Kim Yo Jong in charge?

CNN: The mystery surrounding North Korea's erratic young leader, Kim Jong Un, only deepens by the day.
He has not been seen publicly in more than a month. Rumors are flying that Kim is ill with gout, diabetes, even possible problems with his ankles. Now, a group of defectors say they believe Kim's younger sister, Kim Yo Jong, may be running the country while he recuperates.

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