Apr 15, 2014 20:10 Yellen says Fed examining additional bank rules Yellen says Fed examining additional bank rules FILE - In this March 31, 2014 file photo, Federal Reserve Chair Janet Yellen speaks to community development professionals at the National Interagency Community Reinvestment Conference in Chicago. Yellen said Tuesday, April 15, 2014 that the largest U.S. banks might need to hold additional capital to withstand periods of financial stress. (AP Photo/Paul Beaty, File) MARTIN CRUTSINGER| AP Economics Writer April 15, 2014 Comments WASHINGTON (AP) — Federal Reserve Chair Janet Yellen says recent initiatives by the Fed and other regulators to help banks make it through periods of financial stress are important, but they may still need to be strengthened. Yellen believes current rules governing how much capital banks must hold in case of losses do not address all threats. She said that the Federal Reserve staff is actively considering what additional measures may be needed. Bank regulators need to focus on this area, Yellen says, since bank runs generated at shaky firms were the primary engine that triggered the 2008 financial crisis. Yellen’s comments Tuesday came in an address delivered by video to a financial markets conference sponsored by the Federal Reserve’s regional bank in Atlanta.