Read in Catalan

Some of the National Police vans parked outside the force's police station in Via Laietana, Barcelona served as a kind of mobile photobooth for Spanish nationalists this Sunday. Members of the Spanish police corps allowed protesters attending today's unionist demonstration called by Societat Civil Catalana to get into the vehicles and take a selfie.

Translation:
"You don't need a dictionary to know what small-mindedness and ignorance mean, you now have this video." — Sergi Pinkman

The idea became so popular among passing unionist sympathizers that they even queued up.