From Zero Hedge:

... After such establishment "luminaries" as World Bank president Robert Zoellick, Warren Buffett's father Howard, Jim Grant, and, most recently, Kansas Fed president Thomas Hoenig, all voiced their support for a return to a gold standard, the most recent addition to the motley group of contrite voodoo shamans is none other than the man who is singlehandedly responsible for America's addiction to cheap toxic credit... Alan Greenspan!

In an interview with Fox Business, the man who refuses to go away into that good night:

"We have at this particular stage a fiat money which is essentially money printed by a government and it's usually a central bank which is authorized to do so. Some mechanism has got to be in place that restricts the amount of money which is produced, either a gold standard or a currency board, because unless you do that all of history suggest that inflation will take hold with very deleterious effects on economic activity...

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More on Greenspan:

Hillary Clinton blasts Alan Greenspan

Alan Greenspan makes a weak attempt to save his reputation

Must read bit from Richard Russell... "disgusted" by Greenspan's latest column