BERLIN, GERMANY - NOVEMBER 06:  Taxi cars stay in front of the Ostbahnhof railway station during a four-day strike by the GDL train drivers labor union on November 6, 2014 in Berlin, Germany. The current strike, which affects passenger travel nationwide from today through Sunday, is the longest in the history of German state rail carrier Deutsche Bahn, which is in an increasingly bitter dispute over wages and working hours with the GDL.  (Photo by Carsten Koall/Getty Images)