Hiroshima Mayor Kazumi Matsui said Thursday he will step up pressure on the Japanese government to join a U.N. treaty banning nuclear weapons at a ceremony next week in the city to mark the 74th anniversary of the 1945 U.S. atomic bombing.Matsui told a press conference that he will ask the central government to "accept A-bomb victims' calls for Japan's signing and ratification of the treaty" in the city's peace declaration at the ceremony on Tuesday. The mayor has stopped short of explicitly urging Tokyo to join the 2017 treaty for the past two years.Tomihisa Taue, mayor of the other A-bomb…READ FULL ARTICLE