Transatlantic TakeBERLIN—As Europe struggles to deal with the refugee crisis, it seems like a long time ago that Greek Prime Minister Alexis Tsipras threatened to undermine EU sanctions against Russia. His flirtation with Russian President Vladimir Putin last year was widely seen as a way for Greece to increase its leverage in negotiations with its eurozone partners and the International Monetary Fund, which were reaching a critical stage in the spring. In the end, a deal was struck in the summer that prevented a default and allowed Greece to remain in the single currency, though it is unlikely to do …read more