Eric Holder has gone back to work for his old firm, the white-collar defense heavyweight Covington & Burling. Holder will reassume his lucrative partnership (he made $2.5 million the last year he worked there) and take his seat in an office that reportedly was kept empty for him in his absence. At issue is the extraordinary run Holder just completed as one of history's great double agents. For six years, while brilliantly disguised as the attorney general of the United States, he was actually working deep undercover ... as the best defense lawyer Wall Street ever had. After six years of letting one banker after another skate on monstrous cases of fraud, tax evasion, market manipulation, money laundering, bribery and other offenses [by] handing out soft-touch settlements to practically every Too Big to Fail bank in the world, [Holder] returns to a firm that represents many of those same companies: Morgan Stanley, Wells Fargo, Chase, Bank of America and Citigroup, to name a few. Going by the massive rises in share price observed after he handed out these deals, his service was certainly worth many billions of dollars to Wall Street. Now he will presumably collect assloads of money from those very same bankers. It's one of the biggest quid pro quo deals in the history of government service. Holder ... institutionalized a radical dualistic approach to criminal justice, essentially creating a system of indulgences wherein the world's richest companies paid cash for their sins and escaped the sterner punishments the law dictated.