Thanks to dramatic occurrences on some college campuses in advance of appearances by some guest speakers and, to a large extent, President Donald Trump’s aggressiveness toward certain newspapers and television networks, many are fearing a chill in the realm of free speech in the United States.

Psychologist and linguist Steven Pinker isn’t necessarily one of them, but he does think it’s a good time to reiterate that free speech is fundamental.

Pinker is the author of the book, "Enlightenment Now," and was recently visiting Arizona State Unversity to discuss his work.