Special Report: Trump says he's "totally prepared to walk away" from North Korea summit
President Trump and Japanese Prime Minister Shinzo Abe made a joint appearance at the White House ahead of next week's North Korean summit. Mr. Trump said he was "totally prepared to walk away" from the summit. If the summit goes well, the president said he may invite North Korean leader Kim Jong Un to the U.S. Jeff Glor anchors a CBS News Special Report from New York.