Greenspan's recent statements are a far cry from his previous principled stance. For example, in "The Assault on Integrity", an essay included in Capitalism: The Unknown Ideal compiled by Ayn Rand, Greenspan penned:
Government regulation is not an alternative means of protecting the consumer. I does not build quality into goods, or accuracy into information. Its sole 'contribution' is to substitute force and fear for incentive as the 'protector' of the consumer. . . The hallmark of collectivists is their deep-rooted distrust of freedom and of the free-market process. . .It appears as though Greenspan was either corrupted his time spent in government or that he was leaned on to be a fall guy -- to take some heat from those still in office and still at the helm of the programs and agencies responsible for this mess.
To continue: Is our present situation a result of market failure? I think not. To oversimplify just a bit, fiat money and government programs that distorted the market and produced unintended consequences are to blame. Fortunately some smart folks have already done great work explaining why this is the case, such as those over at The Austrian Economists blog. Also, check out this video featuring Peter Shiff who in 2006 made a pretty accurate prediction on this issue (as did others years ago, but they were dismissed by politicians and bureaucrats):