Hiroshima marked the 73rd anniversary of the U.S. atomic bombing on Monday, with its mayor making a fresh call for a world without nuclear weapons through dialogue, but stopping short of explicitly urging Japan to join a global nuclear weapons ban treaty.Despite some expectations of progress toward nuclear disarmament in recent years, Mayor Kazumi Matsui warned of the re-emergence of tensions over nuclear weapons seen during the Cold War and sought rational actions by global leaders."If the human family forgets history or stops confronting it, we could again commit a terrible error," Matsui…READ FULL ARTICLE