Betting With Lots And Lots Of Money

From The Financial Crisis: An Interview with George Soros by George Soros, Judy Woodruff:

There are now, for example, complex forms of investment such as credit-default swaps that make it possible for investors to bet on the possibility that companies will default on repaying loans. Such bets on credit defaults now make up a $45 trillion market that is entirely unregulated. It amounts to more than five times the total of the US government bond market. The large potential risks of such investments are not being acknowledged.