hat the SEC has widened its scrutiny of the Wall Street mortgage machine, the agency is looking at whether investors were misled in deals created by Mizuho Financial Group Inc., according to people familiar with the situation. The Japanese bank was a late entrant to the CDO market and one of the big losers, suffering billi

p., Barclays, BNP Paribas SA, Citigroup Inc., Credit Sui=se AG, Deutsche Bank AG, Goldman Sachs Group Inc., HSBC Holdings Plc, JPMorgan Chase & Co., Mizuho Financial Group Inc., Morgan Stanley, Nomura Holdin=s Inc., Royal Bank of Scotland, UBS and Wells Fargo & Co. An Easy Con in an Era of Regulation Not only can banks as