The Yakuza in Japan has links that extend as far back as 400 years to Edo era. But their days of protecting the weak against the strong are long gone. Today, the Yakuza is a mighty and entrenched criminal network with nearly 80,000 members operating in 22 crime syndicates, and raking in billions of dollars a year. And Japan's law enforcement wants to wipe them out once and for all.

101 East: Battling the Yakuza http://youtu.be/ZWrSqQ4lvjw