I think these white collar crimes go unnoticed for so long due to their complexity and inherent corruption being that money is the product. Only the SEC really has the knowledge, enforcement-wise, to bring any kind of charges for financial wrongdoing. I believe once A is connected to Zed in as clear a language as possible, criminal charges will be brought. That and being found guilty for these first offenses.
Going after GS first is a major announcement to all cronies. None shall pass.
Perp walk coming soon....
I hope to God that someone nails the SOBs at GS...but...their response about the allegations seem plausable enough to let 'em skate.

In a response to the SEC they said that, despite the fact they were paid $15 million in fees to structure the deal, they actually lost about $90 billion when the CDOs blew up. Therefore, they did NOT capitalize on everyone else's losses. Also, the customers who bought the CDOs were experienced and had done several other deals w/ them prior to the one that made Jonh Paulson billions from the sub-prime meltdown. So they were already sophisticated, experienced customers and GS did not misrepresent the risk to the buyers.
More disheartening is the political connections that GS has. Seems like three-quarters (or more!) of the current and last couple of Presidential administrations are made up of Goldman Sachs alumni. Remember how Hank Paulson was the alarmist that ram-rodded the $70 billion thru under the guise that the US economy would collapse...and then the money was never spent the way it was supposed to be?! Nobody called him on it. If they made a movie about GS it would be like a cross between Wall Street and Devil's Advocate!