Federal Reserve Chairman Alan Greenspan, telling Congress Friday he was purposely ambiguous Wednesday about the timing of future rate cuts, said it is reasonable to expect a long-term growth rate around 3% and, with fiscal restraint, still lower interest rates. Greenspan, appearing before the House Budget Committee, was asked if he believed "you may have waited a little too long to lower interest rates? Greenspan said he thought he had successfully avoided questions on rate cut timing in his Wednesday testimony before the House Financial Services Committee. "Well, first of all, I hope I was sufficiently ambiguous not to have indicated the timing of when or if we would move," he said. "I was peculiarly adept -- I hope I was adept -- at what we term 'Fedspeak' on that issue at the House Financial Services committee a couple of days ago."