Good article.
The other side of this story--not reported in this article--is the degree to which the CDO market has contributed to causing these meltdowns in the first place. With so much capital out there looking for bonds to acquire, it's only natural that spreads are driven down, and there's an incentive to get as much supply to the market as possible. This makes it ever more profitable for originators to close their eyes to dubious underwriting practices. So you have assets priced too low for the risk going into securitizations that would be priced too low for the risk even if the assets were of the quality their spreads seem to advertise, which they aren't.