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In this March 26, 2018, photo provided March 28, 2018, by the North Korean government, North Korean leader Kim Jong Un, center, and his wife Ri Sol Ju, center right, are greeted by Chinese Communist Party members on the arrival at Beijing station in Beijing. Kim made the unofficial visit to China at Xi's invitation, China's official Xinhua News Agency said, in his first trip to a foreign country since he took power in 2011. Xinhua said the trip ran from Sunday to Wednesday but appeared to include travel time from Pyongyang on the special armored train that Kim traveled in, which secretly arrived in Beijing on Monday and left Tuesday afternoon. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency.  (Korean Central News Agency/Korea News Service via AP)
In this March 26, 2018, photo provided March 28, 2018, by the North Korean government, North Korean leader Kim Jong Un, center, and his wife Ri Sol Ju, center right, are greeted by Chinese Communist Party members on the arrival at Beijing station in Beijing. Kim made the unofficial visit to China at Xi's invitation, China's official Xinhua News Agency said, in his first trip to a foreign country since he took power in 2011. Xinhua said the trip ran from Sunday to Wednesday but appeared to include travel time from Pyongyang on the special armored train that Kim traveled in, which secretly arrived in Beijing on Monday and left Tuesday afternoon. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency.  (Korean Central News Agency/Korea News Service via AP)

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Former NK negotiator: They won't give up nukes

The former governor of New Mexico and former US Ambassador to the U.N. Bill Richardson, who has negotiated with North Korea many times, weighs in on the North Korea meeting with China.