https://phys.org/news/2018-07-barcelona-taxis-2nd-day-tourists.html > Passengers arriving in Barcelona's El Prat Airport were queuing for buses under a scorching sun as empty taxis passed by honking their horns in protest. > Taxi drivers have been on strike to oppose a judge's decision that suspended the need for additional authorization for the ride-hailing companies to operate in Barcelona. Drivers say if the decision is not overturned by Thursday they may extend their strike.