Europe's Debt Crisis Five Threats to the Common Currency

First it was Greece. Then came Portugal and Spain, with Ireland and Italy not far behind. The financial crisis has driven up public debt in Europe's common currency zone to such heights that many economists fear the euro could collapse. SPIEGEL ONLINE takes a look at the five greatest risks to the future of the euro zone.
An anti-capitalist piece of graffiti in Athens: Greece's debt crisis is just one of the euro zone's many problems.

An anti-capitalist piece of graffiti in Athens: Greece's debt crisis is just one of the euro zone's many problems.

Foto: Orestis Panagiotou/ dpa
Graphic: Euro-dollar exchange rate

Graphic: Euro-dollar exchange rate

Foto: DER SPIEGEL
Graphic: Budget deficits in the euro zone

Graphic: Budget deficits in the euro zone

Foto: DER SPIEGEL