Is Goldman Sachs Responsible for Greek Crisis?

Goldman Sachs tricky derivatives trades may have masked the Greek debt just long enough to hurt all of us again. Goldman Sachs made up an exchange rate that allowed the Greeks to look as though they were only engaging in a currency swap when, in effect, they were getting more than a billion more than they should have from the trades in credit. Its likely that Goldman made a killing on the commissions for the swaps, and then sold the swaps to a Greek bank for even higher profits.