Wow, we're getting some plain talk coming out of the woodwork as of late.

The Joy of Sachs :

Over the past generation — ever since the banking deregulation of the Reagan years — the U.S. economy has been “financialized.” The business of moving money around, of slicing, dicing and repackaging financial claims, has soared in importance compared with the actual production of useful stuff. The sector officially labeled “securities, commodity contracts and investments” has grown especially fast, from only 0.3 percent of G.D.P. in the late 1970s to 1.7 percent of G.D.P. in 2007.

Such growth would be fine if financialization really delivered on its promises — if financial firms made money by directing capital to its most productive uses, by developing innovative ways to spread and reduce risk. But can anyone, at this point, make those claims with a straight face? Financial firms, we now know, directed vast quantities of capital into the construction of unsellable houses and empty shopping malls. They increased risk rather than reducing it, and concentrated risk rather than spreading it. In effect, the industry was selling dangerous patent medicine to gullible consumers.

Goldman’s role in the financialization of America was similar to that of other players, except for one thing: Goldman didn’t believe its own hype.

i.e. "rigged game" but more importantly, by turning the U.S. economy into a glorified gambling casino, Krugman is saying the U.S. is still vulnerable to another implosion.