Relatives of Japanese nationals abducted by North Korea expressed disappointment Thursday with the apparent lack of progress on the decades-old issue at summit talks between U.S. President Donald Trump and the North's leader Kim Jong Un.Prime Minister Shinzo Abe told reporters after talking with Trump over the phone to be briefed on the summit in Hanoi that the U.S. president raised the issue with Kim but the matter did not come up at a post-meeting press conference.The abductions during the 1970s and 1980s remain one of Japan's biggest grievances against North Korea and have been a major h…READ FULL ARTICLE