Priscilla Villarreal, also known as "Lagordiloca," has sparked a debate about free speech and who, exactly, is a journalist.A journalist asked the police a few questions and was arrested by that same agency for publishing the answers. That this happened not in China or Russia but in the U.S. may raise some eyebrows. Yet that's the conduct a federal court greenlit last week when it ruled that law enforcement in Laredo, Texas, did not obviously violate the Constitution when officers allegedly misled a magistrate judge and arrested Priscilla Villarreal for doing basic reporting, adding another twist to a case that...