Too many in power are treating it as a moral issue.
Economics isn't ethics and morality. It's an attempt to describe the workings of an economy and what should be done under conditions of economic distress.
There are ways to fix the Greek economy and get it growing again, but too many in power in the EU are treating the problem as if it's one of "confidence" and "not rewarding bad behavior".
The numbers don't lie - Greek can't pay back most of these bonds even if the bond holders take substantial losses. Every day of austerity makes the situation worse. Since European banks hold many of the bonds in question, they want their money and will do what they can to get it. Even if it results in a revolution and collapse in Greece.
There are a lot of things the EU/ECB/IMF/etc. could do to substantially lessen the stress on the Greek financial system, but they won't because they view it as a problem of Greek morals. The politicians in the EU that control the purse-strings (Merkel especially) have shown no leadership in explaining the reality to their voters.
Greece (and Portugal and Italy and maybe even Spain) likely need something like a Marshall Plan - dump a lot of money into the economies to stablize them and get them growing again. It'll increase demand, helping the donor countries/economies, and it'll reduce political pressures in the PIIGS for more radical solutions.
The longer this goes on without recognizing reality, the worse the solution will be.
http://krugman.blogs...6/the-greek-vise/
Cheers,
Scott.