In my book "The Great Successor," I wrote that Kim Jong Un's biggest risk factor was his obvious poor health -- and in particular the risk of cardiac problems.

Kim Jong Un is five feet, seven inches tall, and weighs about three hundred pounds = BMI of 45, or "extremely obese" Here's the verdict of South Korean doctors who assessed Kim Jong Un's health based on unedited footage of him at summits with the South Korean and American presidents:

Let me take a moment to share some great stories that American correspondents in China have done this year, reporting that requires being on the ground and speaking to real people and understanding the country.

First up: @amyyqin, who went to Wuhan:

nytimes.com/2020/02/28/wor… Then there's @Chao_Deng of the @WSJ, who has already lost her press card after filing these very human tales from virus-stricken Wuhan, at great personal risk:

wsj.com/articles/coron…

North Korea has put out a 42 minute documentary about Kim Jong Un's visit to Singapore, start to finish, and it's *astounding.* Shows him in the presidential suite at the St Regis, walking by the infinity pool on top of Marina Bay Sands youtube.com/embed/8AwmdHH5… The North Korean documentary includes full coverage of Kim Jong Un meeting Donald Trump, including Trump's big smile as he walked down the breezeway to Trump, and the thumbs-up in their first meeting youtube.com/embed/8AwmdHH5…