because the fed has already gone much further than former fed officials like bomfim thought it would ever have to go. >> so they are taking very aggressive action. >> reporter: the fed has already pledged to keep interest rates low through 2013. now, add to that operation twist. >> so they are doing a lot. the problem is they don't have a lot left, and what they have left has limited powers, at this point. >> reporter: which is why the federal reserve chairman reminded congress today that lawmakers have a shared responsibility to implement policies that support economic growth. the not so subtle point-- the federal reserve can't do it all. darren gersh, "nightly business report," washington. >> susie: stocks mount a late- day turnaround on fresh hopes europe can shore up its banks. the dow rose 153 points, rebounding from a loss of 200 points earlier in the session. the nasdaq added 69 points, or 3%, and the s&p 500 gained 24, despite dipping into bear market territory earlier in the day. >> tom: still ahead-- we go "beyond the scoreboard" with the owner of the miami dolphins. we ask