The committee, whose members include ex-MI5 director general Baroness Manningham-Buller, said economic instability could leave the UK "unable to defend itself".

BBC: Security: UK 'must plan for euro collapse'

But putting your financial consultant hat on there, is there any general guidance about how people should react to this kind of instability?

NPR: Lehman Brothers, Merrill Lynch: What Does It All Mean?

The first is that holding the door open to Balkan countries such as Croatia, Serbia, Macedonia and the rest does not imply support for enlargement in general it is a specific strategy for preventing further instability in Europe's backyard.

ECONOMIST: Charlemagne

Although no effort was made to reach a consensus or to adopt specific recommendations, the general sentiment appeared to be that the post-Cold War era is increasingly characterized by portentous challenges and ominous instability.

CENTERFORSECURITYPOLICY: Center For Security Policy