Robert Khuzami, a former terrorism prosecutor who revamped the Securities and Exchange Commission's enforcement unit, is stepping down from the agency after an aggressive four-year tenure, the New York Times DealBook blog reported yesterday. His departure signals the end of an important chapter in the history of the agency, which has been praised for taking significant actions against some of Wall Street's largest banks after the financial crisis but also scrutinized for not suing top bank executives at those firms. After joining the SEC in 2009, Mr. Khuzami reinvigorated the enforcement team, which was maligned for missing the warning signs of the financial crisis and Bernard L. Madoff's Ponzi scheme. In recent years, the enforcement division notched a record number of actions, many against banks at the center of the crisis.
