What's in U.S. Treasury Secretary Timothy Geithner's wallet? Not much.

While testifying in front of a House Appropriations Subcommittee on Capitol Hill Thursday Geithner was shown a $50 Billion Zimbabwean bank note (rendered worthless by Zimbabwe's hyperinflation) by U.S. Representative John Culberson (R- TX) and asked if he had ever seen one himself. Geithner immediately pulled a piece of Zimbabwean currency out of his own pocket and showed it off to the committee. At the next break in the hearing I approached Geithner and asked how he happened to have a piece of foreign currency in his pocket. His response was "I often have some foreign currency in my wallet. Want to see?" He pulled a very thin and mostly empty wallet from his pocket.