Embedded Player Ultimately, the support of potential U.S. voters between now and November may depend on comments like the ones Federal Reserve Chairman Alan Greenspan made Tuesday. Greenspan warned the economy would suffer significantly in the event of another terrorist attack within the United States. NPR's Tavis Smiley discusses the state of the economy with author-economist Julianne Malveaux and Alison Fraser, director of Economic Policy Studies at the Heritage Foundation.