美国中央银行的官员说，政府在那些为支撑下滑中的经济而推出的有争议项目上获得创记录的赢利。
美联储2010年的利润比上一年增加了780亿美元，较前一年增幅为65%。
美联储一直在购买政府债券，通过压低长期利率来刺激经济。在金融危机期间，美联储还购买了大量得到抵押贷款支持的证券，希望提升投资人的信心。
美联储的利润来自于这些投资上的收益。有关官员对获得这个利润拍手喝彩，但是告诫说，当美联储不再需要经济刺激措施而出售这些资产时，不断改变的市场情况可能会使这个赢利在今后成为亏损。
Officials of the U.S. central bank say the government has made a record profit on its controversial program to bolster the faltering economy.
The Federal Reserve profits in 2010 were more than $78 billion, a 65 percent gain from the previous year.
The Fed has been buying government bonds in an effort to stimulate the economy by holding down long-term interest rates. During the financial crisis, the agency also purchased large quantities of mortgage-backed securities in the hope of increasing investor confidence.
The profit comes from income on these investments. Officials applaud the profit, but caution that changing market conditions could turn that into a loss in the future as the Fed sells the assets when economic stimulus is no longer needed.