Obama is sending Stephen Bosworth to North Korea ...

to ease the tension between North Korea and the USA. It's about talking about disarming their dangerous weapons, particularly the nuclear ones. The reason North Korea wants to keep their nuclear weapons is to combat the US military forces that is in South Korea. The U.N. tried to talk do some peace talking, but they refused to speak this matter and left their meeting. At the end of the article, it says that he will then continue his trip by going to Seoul before traveling to Beijing, Tokyo and etc.