BARCELONA, SPAIN – NOVEMBER 14: Demonstrators set up a barricade of burning tires at the main entrance of Mercabarna, the biggest wholesale market in the city, at the beginning of a 24-hour strike on November 14, 2012 in Barcelona, Spain. Spain’s trade unions have called for today a general strike, the second of Mariano Rajoy’s presidency. Protestors from social movements are expected to join striking public sector workers to demonstrate against austerity cuts, labour reforms and an unemployment rate of 25 percent. (Photo by David Ramos/Getty Images)