Could it really be that no fraud was committed prior to the Great Recession? It's unlikely:
The Financial Crisis: Why Have No High-Level Executives Been Prosecuted?, by Jed S. Rakoff, NYRB: Five years have passed since the onset of what is sometimes called the Great Recession. While the economy has slowly improved, there are still millions of Americans leading lives of quiet desperation: without jobs, without resources, without hope.
Who was to blame? Was it simply a result of negligence, of the kind of inordinate risk-taking commonly called a “bubble,” of an imprudent but innocent failure to maintain adequate reserves for a rainy day? Or was it the result, at least in part, of fraudulent practices, of dubious mortgages portrayed as sound risks and packaged into ever more esoteric financial instruments, the fundamental weaknesses of which were intentionally obscured?
If it was the former—if the recession was due, at worst, to a lack of caution—then the criminal law has no role to play in the aftermath. ... If the Great Recession was in no part the handiwork of intentionally fraudulent practices by high-level executives, then to prosecute such executives criminally would be “scapegoating” of the most shallow and despicable kind.
But if, by contrast, the Great Recession was in material part the product of intentional fraud, the failure to prosecute those responsible must be judged one of the more egregious failures of the criminal justice system in many years. Indeed, it would stand in striking contrast to the increased success that federal prosecutors have had over the past fifty years..., Michael Milken..., the so-called savings-and-loan crisis, which again had some eerie parallels to more recent events, resulted in the successful criminal prosecution of more than eight hundred individuals, right up to Charles Keating. And again, the widespread accounting frauds of the 1990s, most vividly represented by Enron and WorldCom, led directly to the successful prosecution of such previously respected CEOs as Jeffrey Skilling and Bernie Ebbers.
In striking contrast with these past prosecutions, not a single high-level executive has been successfully prosecuted in connection with the recent financial crisis, and given the fact that most of the relevant criminal provisions are governed by a five-year statute of limitations, it appears likely that none will be. It may not be too soon, therefore, to ask why.
One possibility, already mentioned, is that no fraud was committed. This possibility should not be discounted. ... For example, the Financial Crisis Inquiry Commission, in its final report, uses variants of the word “fraud” no fewer than 157 times in describing what led to the crisis, concluding that there was a “systemic breakdown,” not just in accountability, but also in ethical behavior. ...[continue]...