Yakuza members show off their tattoos at a Shinto festival in Tokyo - Jiangang Wang The American journalist Jake Adelstein has spent decades in Japan exposing the secrets of organised crime gangs.

Tokyo (CNN) — Japan’s largest yakuza crime syndicate has pledged to end its longstanding war with a rival faction and refrain from causing “trouble,” authorities said, as the mafia-like groups contend ...

Tokyo (CNN) — Think of Japan’s famed yakuza gangs and you might think of heavily tattooed men getting into bloody fights – the stuff of action films and video games. But last week four men were ...