Japan's biggest banks face gangster investigation

``The Financial Services Agency (FSA) will look at Mizuho's business dealings as well as rivals Mitsubishi UFJ and Sumitomo Mitsui Banking Corp., an agency spokesman said, without disclosing further details. Mizuho has been under fire since it emerged last month that it processed hundreds of loans worth about $2 million for the country's notorious yakuza crime syndicates, which are involved in activities ranging from prostitution and drugs to extortion and white-collar crime.''