8/4/2011 - Most of the world is bankrupt... so where is all the money?

I'm not financial expert and I'm sure there are many experts on here that will answer my question simply. 

If you look at the list of countries by external debt it looks like this

A few links to back up what I'm saying (not that they are needed) 

Euro Crisis - Debt spreading 

Debt Crisis: Live 

US raises debt ceiling 

A total global debt of $63,927,679,988,000 USD or £39.1473852 trillion GBP 

Now that's an extremely large proportion of the planets countries and states that are in debt. I understand that all of these countries will owe money to another in debt but surely it is not possible for this amount of money to be 'missing' from these countries bank accounts. 

I really can't understand where all this money is because it sure as hell isn't in Europe, the UK or the US and it certainly isn't in Africa. Russia, China and Japan appear to be in quite a bit of debt too. Maybe it has been spent bribing the aliens to help us.