Japan's ruling Liberal Democratic Party is stepping up preparations for its leadership race, with Prime Minister Shinzo Abe saying Friday constitutional revision will be a major issue in the election.While Abe, who heads the party, was not clear about whether he will run in the presidential race in September and seek another three-year term, he said at a press conference on the de facto final day of the Diet session that he wants to "speed up discussions" on revising the Constitution.Amending the postwar Constitution, including the war-renouncing Article 9, is a longtime political goal of t…READ FULL ARTICLE