Moody's declassa il rating degli Usa ad Aa1

epa03219310 (FILE) A file picture dated 13 July 2011 shows the Moody's logo outside the offices of Moody's Corporation in New York, New York, USA. According to media reports on 14 May 2012, ratings agency Moody's have down graded 26 Italian banks which include UniCredit and Intesa Sanpaolo. The negative outlook is leading to a possible further downgrade with Moody' sfurther stating that the step was taken because of the poor Italian economy. EPA/ANDREW GOMBERT