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A European Union (EU) flag, left, and Greek national flag fly near the Parthenon temple on Acropolis hill in Athens, Greece, on Monday, Oct. 31, 2011. Europe's plan to solve the region's debt crisis made credit-default swaps covering Greece 'ineffective,' Moody's Investors Service said. Photographer: Angelos Tzortzinis/Bloomberg via Getty Images

A European Union (EU) flag, left, and Greek national flag fly near the Parthenon temple on Acropolis hill in Athens, Greece, on Monday, Oct. 31, 2011. Europe's plan to solve the region's debt crisis made credit-default swaps covering Greece 'ineffective,' Moody's Investors Service said. Photographer: Angelos Tzortzinis/Bloomberg via Getty Images