Lending money is always a transaction between two parties. Both should be responsible. The financial state of a country is easier to evaluate than that of a person, they shouldn't have faller for the tricks of Goldman Sachs.
> According to investigative reports that appeared in Der Spiegel, the New York Times, BBC, and Bloomberg News from 2010 through 2012, Blankfein, now Goldman Sachs CEO, Cohn, now President and COO, and Loudiadis, a Managing Director, all played a role in structuring complex derivative deals with Greece which accomplished two things: they allowed Greece to hide the true extent of its debt and they ended up almost doubling the amount of debt Greece owed under the dubious derivative deals.
source: http://wallstreetonparade.com/2015/06/goldman-sachs-doesnt-h...
So, EU and IMF didn't catch that, they lent money in a stupidly criminal way and now they want it back at any cost to Greece. They lent Greece money when Greece didn't need it, and now request it back when they are down.
Of course Greece bears the brunt of blame here, but collective punishment at the level of a country is cruel. There are lots of innocents paying now for the financial dealings of the older generation.
It's sad to see EU reduced to this kind of relationships between us. Maybe EU isn't ready to exist as it is. They allowed countries into the union and Eurozone that didn't need to be there. Instead of having a corruption-reducing effect, corruption was allowed to go on without scandals for years. EU should have had a civilizing effect on its poorer and more corrupt countries. As it is now, it's a money-shark.