World leaders preparing for the G20 conference are facing a threat to the global economy from the on-going Eurozone sovereign debt crisis. But as they try to avert further economic catastrophe some investors see opportunities to profit from the mayhem. Michael Robinson reveals how on-going economic volatility and uncertainty can also present golden investment opportunities - and how, through complex trades, bets and investments, some find cash in the current crisis. Producer: Gail Champion Reporter: Michael Robinson Editor: David Ross.