In this month's Rolling Stone, Matt Taibbi reports that the SEC is busy erasing the past, intentionally destroying entire files from past investigations, many of which would be relevant to investigating recent Wall Street misconduct:

The widespread destruction of records was brought to the attention of Congress in July, when an SEC attorney named Darcy Flynn decided to blow the whistle. According to Flynn, who was responsible for helping to manage the commission's records, the SEC has been destroying records of preliminary investigations since at least 1993. After he alerted NARA to the problem, Flynn reports, senior staff at the SEC scrambled to hide the commission's improprieties. As a federally protected whistle-blower, Flynn is not permitted to speak to the press. But in evidence he presented to the SEC's inspector general and three congressional committees earlier this summer, the 13-year veteran of the agency paints a startling picture of a federal police force that has effectively been conquered by the financial criminals it is charged with investigating. . . . [T]o date, federal and state prosecutors have yet to put a single senior Wall Street executive behind bars for any of the many well-documented crimes related to the financial crisis. Indeed, Flynn's accusations dovetail with a recent series of damaging critiques of the SEC made by reporters, watchdog groups and members of Congress, all of which seem to indicate that top federal regulators spend more time lunching, schmoozing and job-interviewing with Wall Street crooks than they do catching them. As one former SEC staffer describes it, the agency is now filled with so many Wall Street hotshots from oft-investigated banks that it has been "infected with the Goldman mindset from within."