I found four new videos on the khanacademy.org website. They’re very useful to get a full understanding of what’s going on with Greece debt and the fate of Greece in the EU.
Greek financial crisis (part 2): What Greece could have done if it had its own currency
How and why Greece would leave the Euro (part 3): The pain and mechanics of leaving the Euro
Why Europe is worried about Greece: Why the Greek situation is scary for Europe as a whole