(RECAP: The Federal Reserve may need to run a “high-pressure economy” to reverse damage from the 2008-2009 crisis that depressed output, sidelined workers, and risks becoming a permanent scar, Fed Chair Janet Yellen said on Friday in a broad review of where the recovery may still fall short. Though not addressing interest rates or immediate policy concerns directly, Yellen laid out the deepening concern at the Fed that U.S. economic potential is slipping and aggressive steps may be needed to rebuild it. Yellen’s comments, while posed as questions that need more research, still add an important voice to an intensifying debate within the Fed over whether economic growth is close enough to normal to need steady interest rate increases, or whether it remains subpar and scarred, a theory pressed by Harvard economist and former U.S. Treasury Secretary, Lawrence Summers, among others.)