BBC News reports
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EU BreakUp?
The circle below shows the gross external, or foreign, debt of some of the main players in the eurozone as well as other big world economies.
BBC News - Eurozone debt web: Who owes what to whom?
And that was in the year that featured the Arab Spring, the Japanese tsunami and the death of Osama Bin Laden. What's more, 2012 looks set to be not much different.
BBC News - What really caused the eurozone crisis?
BBC News - Greeks reject 'impossible' German plan for budget veto
Greeks are already unhappy about outside interference in their economy Charles Dallara and Jean Lemierre, representing the creditors, said on Saturday they were "close to the finalisation" of a deal that would see banks and investors write off about 50% of money they are owed.