sentences:  In this he contradicted earlier written testimony from a deputy assistant attorney general, who defended the Justice Department's "vigorous enforcement against wrongdoing".Holder has financial ties to at least one law firm benefiting from "de facto" immunity to prosecution, and prosecution rates against crimes by large financial institutions are at 20-year lows.Four days later, Federal Reserve Bank of Dallas President Richard W. Fisher and Vice-President Harvey Rosenblum co-authored a "Wall Street Journal" op-ed about the failure of the Dodd–Frank Wall Street Reform and Consumer Protection Act to provide for adequate regulation of large financial institutions.