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Issues of financial reform and regulation can be intimidating to laymen (this layman anyway) because of its insanely complex nature. It is easy to imagine the system as a big Jenga tower, and moving one piece might cause the whole thing to come crashing down. No one wants to be seen as inadvertently - but earnestly! - advocating for a ruinous policy. Of course, that means the opposite extreme is then in play: Turning into Hamlet and endlessly agonizing over what to do at the expense of actually doing something. Not to mention the fact that, not to put too fine a point on it, wide swaths of our leadership has for years now been deliberately advocating ruinous policies both at home and abroad. That should certainly make those of us in the unwashed masses comfortable with forcefully advocating what seems reasonable based on available data. It's not as though we could screw it up any worse.

Still, it would be nice to have a rule of thumb, compass point or guiding principle to go by. Having been a reasonably close observer of the meltdown and its aftermath, here is one I have come up with: It is necessary (but not sufficient) that any proposal be strenuously opposed by Goldman Sachs (GS). In a largely protected industry Goldman appears to be the closest thing to untouchable as we have. It is in Matt Taibbi's already-legendary description "a great vampire squid wrapped around the face of humanity, relentlessly jamming its blood funnel into anything that smells like money." It has installed a revolving door between the highest levels of the government and its board room, enjoys privileged lines of communication with the Treasury secretary exceeding even that of our closest allies, was happily positioned as a key competitor died, then days later benefited as a key debtor was drenched in cash (Yves Smith called it a "massive backdoor subsidy to the likes of Goldman"), and as it happens was the second largest contributor to the president in the 2008 election cycle. More so than any other player in financial services, GS always seems to be nearby when bad things happen.