Crimes in Japan are becoming increasingly organized, global and technologically advanced, but the public is not fully aware of the changing face of crime, the nation's highest-ranking prosecutor said Monday.Speaking at the Japan National Press Club, Public Prosecutor General Keisuke Kitajima said that the job of prosecutors is more demanding than ever as crimes have become international and are often high-tech in nature.Kitajima refrained from commenting on ongoing, individual investigative efforts such as those concerning suspected insurance fraud and attempted murder allegedly committed by a Wakayama couple.Meanwhile, he stressed the need to pass a pending bill to tackle organized crime. The bill, drafted by the Justice Ministry and submitted to the legislature during a regular Diet session earlier this year, was shelved during the session and a subsequent extraordinary Diet session.