The Washington Post ran a map showing which countries in Europe use the euro and which use other currencies. The map is wrong. It shows Montenegro and Kosovo as using currencies other than the euro. This is not accurate, both countries do use the euro as their official currency although they have not have been accepted into the euro zone.

This is important in the context of the discussions on Greece because it illustrates the point that Greece cannot be forced off the euro. The European Commission and the European Central Bank can impose incredibly onerous conditions on Greece, but they cannot prevent the country from using the euro if it so chooses. The decision to leave the euro could only be made by the Greek government, not its creditors.