WASHINGTON/MILAN (Reuters) -U.S. shares were mixed and global equities retreated from record highs on Tuesday as investors balanced mounting worries over the slowing pace of economic recovery and hopes the Federal Reserve will delay tapering its bond purchases.WASHINGTON/MILAN (Reuters) -U.S. shares were mixed and global equities retreated from record highs on Tuesday as investors balanced mounting worries over the slowing pace of economic recovery and hopes the Federal Reserve will delay tapering its bond purchases.Read More