Kim Jong-un's 'weight problem' and the pitfalls of spy briefings

I once had lunch with an analyst from the National Intelligence Service (NIS). I can't tell you exactly who he was, because he refused to give out his business card. However, he opined that a woman in Kim Jong-un's inner circle was pregnant. When I asked how he knew, he replied that she was suddenly appearing in photographs with flat, sensible shoes.
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