As a dean of a public university law school, do I violate my students’ free speech rights when I encourage them to speak respectfully to one another, to demonstrate civility and to refrain from hateful expression? There are countless instances in which government officials speak out — does that chill freedom of expression among those who disagree with what an official says? In two Supreme Court cases this term, including one decided Wednesday, the justices rightly reaffirmed that speech by government officials violates the 1st Amendment only if it includes an explicit threat of sanctions.