To mark the one-year anniversary of Catalonia's hugely controversial independence referendum, more than 150,000 Catalans took to the streets of Barcelona. Some blocked roads and rail lines and scuffled with police. It was a signal of frustration from people whose dream has been thwarted. HARDtalk's Stephen Sackur speaks to Ernest Maragall, self-styled minister of foreign action in the Catalan regional government. Have the separatists reached a dead end? Show less