A man wears an 'Estelada' (pro-independence Catalan flag), at the Tarraco arena in Tarragona during the official launch of the Catalan main separatist parties' campaign for an independence referendum, on September 14, 2017. 
Catalan separatists launched their campaign today for a banned independence referendum in front of thousands of cheering supporters, despite growing desquiet in Spain as pressure mounts to stop the vote at all cost. / AFP PHOTO / Josep LAGO        (Photo credit should read JOSEP LAGO/AFP/Getty Images)