BARCELONA : A demonstrator protests covering her mouth with a banner next to a Catalan police officer in Barcelona, Spain, Wednesday, Sept. 20, 2017. Catalan pro-independence supporters have scuffled with Spanish Civil Guard officers as they left a building, escorting a government official arrested as part of a crackdown by national authorities on Catalonia’s plans to hold a secession referendum. (AP Photo/Emilio Morenatti)