Fed's Ferguson - Long term US econ prospects sound

US - Federal Reserve Vice Chairman Roger Ferguson on Tuesday said the U.S. economy's longer-term prospects "remain sound," but said it is not known how long it will be before U.S. economic growth begins to recover from the events of 11 September.

"If the extent of the economic damage inflicted by the attacks is unknown at this point, so too is the length of time before aggregate economic growth picks up," Ferguson said in prepared remarks to the Bond Market Association's First Annual Credit an