The recent failures of credit rating agencies are now well known. They too often gave high ratings to bonds that subsequently defaulted. Their investment grade ratings of many subprime mortgage-backed securities were a primary cause of the current financial crisis.
信用評級機構近來的失敗如今已眾所周知。在太多情況下，對于那些最終違約的債券，它們給予了較高的評級。它們給予許多次級抵押貸款支持證券的“投資級”評級，是當前這場金融危機的主要誘因。
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