Weighing up the eurozone risks

There are some things that are hard to ignore and one of them at present is Greece.

Let me sketch out a scenario. A crisis builds up over the summer months leading to a mood of intense nervousness in financial markets.

It comes to a head in the early autumn with a devastating impact on the global banking system and the world economy.

Suddenly the situation is one of extreme danger which the authorities struggle to contain. Every bank every business and every individual is plunged into huge uncertainty.

That of course was what happened with the collapse of Lehman Brothers three years ago. Could history repeat...