Derivatives, Bonds, John Key and how big the Derivatives bubble really is

Derivatives have been described as 'financial weapons of mass destruction' (http://news.bbc.co.uk/2/hi/2817995.stm) by Warren Buffet.

Here's a great look at the context for this suicidal gambling addiction that has affected so many of the world's banks...

In another article, the problem can be clearly seen - Global GDP approx $63 Trillion (USD) and Global Derivatives Market approx $639 Trillion (USD, as total outstanding notional of all derivatives, Q2, 2012 source: http://www.zerohedge.com/news/2012-11-13/q2-total-gross-notional-derivatives-outstanding-639-trillion) - i.e. for every dollar of gross domestic product globally, there exists 10x that in leverage in the form of these derivatives.

As mentioned in the article, there's 3x the global economy in the 9 largest banks...