A subway worker walks out of a train at an empty terminal during a one-day nationwide strike in Buenos Aires March 31, 2015. Argentina’s public transport networks ground to a halt, port workers in the grains export hub of Rosario downed tools and banks shuttered their doors on Tuesday in a general strike over demands for changes to income tax. The poster placed on the train reads, “Damn tax on labor – National strike on March 31 – transport workers”. REUTERS/Marcos Brindicci