That's nonsense. The following exchange takes place in the documentary where Breuer admits the reason these banks aren't prosecuted is because it is basically government policy not to...
""" MARTIN SMITH: You gave a speech before the New York Bar Association. And in that speech, you made a reference to losing sleep at night, worrying about what a lawsuit might result in at a large financial institution.
LANNY BREUER: Right.
MARTIN SMITH: Is that really the job of a prosecutor, to worry about anything other than simply pursuing justice?
LANNY BREUER: Well, I think I am pursuing justice. And I think the entire responsibility of the department is to pursue justice. But in any given case, I think I and prosecutors around the country, being responsible, should speak to regulators, should speak to experts, because if I bring a case against institution A, and as a result of bringing that case, there’s some huge economic effect — if it creates a ripple effect so that suddenly, counterparties and other financial institutions or other companies that had nothing to do with this are affected badly — it’s a factor we need to know and understand. """
http://www.zerohedge.com/news/2013-01-23/assistant-attorney-...