Turkey joining the EU means it will have to abandon the scandalous export subsidies, enact environmental laws and labor protection that would wipe out any competitive advantage its exports enjoy. And it is the only advantage, because quality wise they are pretty shoddy. Even items that are made in Turkey by foreign firms, who transported their manufacturing plant to the country, are shoddy. Just compare items and see.
As for Greece leaving the Euro, this is the talk of schmucksperts who spout forth a new opinion every day. The Germans figure Greece leaving would cost the Eurozone 2 trillion Euro.
And let us not forget that accounting is a double entry business. The deficits of the Greeks are someone else's profits, namely the Germans. The so called "financing" given is in reality lending at preferential rates and then relending to Greece at two points profit.
If these super dooper economists are scientists, as they claim, how come they could not foresee the problem building up in 2007? Because they know FA, that is why. The knew FA then, they know FA now. After this crisis, the Lehman Bros folding, Madoff, Enron, it is obvious that economics is no more science than the reading coffe cups.