<div>U.S., Japan may need more tools to shore up banking system -Fed's Rosengren</div> <!-- no image --> <div>The United States and Japan may need to shore up bank oversight to prepare for economic downturns, the head of the Federal Reserve Bank of Boston warned on Friday.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AwgQ17TXRZ0:pTZYs8jaANs:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AwgQ17TXRZ0:pTZYs8jaANs:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=AwgQ17TXRZ0:pTZYs8jaANs:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AwgQ17TXRZ0:pTZYs8jaANs:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=AwgQ17TXRZ0:pTZYs8jaANs:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/AwgQ17TXRZ0" height="1" width="1" alt=""></div> Posted by Reuters