There's a lot more pressure on the U.S. than on North Korea to do well in this summit because the U.S. has become the world's worst diplomat. The Trump administration has pulled the U.S. out of so many important agreements that were aimed at cooperation and peace...There are concerns that Trump may go for what is most threatening to the U.S., the ICBM capacity of North Korea, rather than the much larger arsenal of short-range and mid-range missiles that would target Japan, South Korea, and the regional partners in Asia.