WASHINGTON, DC - SEPTEMBER 13: Former Federal Reserve Board Chairman Alan Greenspan testifies during a hearing before the Responsibility and Economic Growth Subcommittee of the Senate Finance ... more 
WASHINGTON, DC - SEPTEMBER 13: Former Federal Reserve Board Chairman Alan Greenspan testifies during a hearing before the Responsibility and Economic Growth Subcommittee of the Senate Finance Committee September 13, 2011 on Capitol Hill in Washington, DC. The hearing was focused on "Whether There is a Role for Tax Reform in Comprehensive Deficit Reduction and U.S. Fiscal Policy." (Photo by Alex Wong/Getty Images) less 
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Getty Images | Photo By Alex Wong / Getty Images
Tue, Sep 13, 2011 4:44 PM EDT