People light torches before a march on the eve of "Diada de Catalunya" (Catalunya's National Day) in central Barcelona September 10, 2014. Opinion polls show that half of Catalonia's 7.6 million residents want independence, and regional leader Artur Mas wants to hold a plebiscite on secession in November, two months after Scotland votes on leaving Great Britain. But the Catalonia vote is not likely to happen, because it is expected to be declared unconstitutional. REUTERS/Albert Gea (SPAIN - Tags: POLITICS ANNIVERSARY)