For Britain's Euro-skeptics, the current eurozone crisis has an air of inevitability and opportunity. The crisis validates their view of the single currency as a straitjacket forcing disparate economies into an unworkable union.

"We told you so", crow Britain's anti-European politicians, goaded on by their supporters in the right-wing press.

As the eurozone teeters on the edge of financial abyss, Euro-skeptics in the British Conservative Party sense an opportunity to push Britain's membership in a federal Europe permanently into oblivion.