The EU did to Greece what it did because it was feared that the bankruptcy of the least member of the EU would topple German banks into bankruptcy. That non-pay

The EU did to Greece what it did because it was feared that the bankruptcy of the least member of the EU would topple German banks into bankruptcy. That non-payment on 1.3% of total government debt would cause a disaster. Now the second-biggest economy is leaving the EU, with unknown implications for lots of financial instruments ... There is at least a serious case to be made that this could be bad.