Why free speech is fundamental

Steven Pinker in the Boston Review:

More than two centuries after freedom of speech was enshrined in the First Amendment to the Constitution, that right is very much in the news. Campus speech codes, disinvited commencement speakers, jailed performance artists, exiled leakers, a blogger condemned to a thousand lashes by one of our closest allies, and the massacre of French cartoonists have forced the democratic world to examine the roots of its commitment to free speech.

Is free speech merely a symbolic talisman, like a national flag or motto? Is it just one of many values that we trade off against each other? Was Pope Francis right when he said that “you cannot make fun of the faith of others”? May universities muzzle some students to protect the sensibilities of others? Did the Charlie Hebdo cartoonists “cross a line that separates free speech from toxic talk,” as the dean of a school of journalism recently opined? Or is free speech fundamental — a right which, if not absolute, should be abrogated only in carefully circumscribed cases?

The answer is that free speech is indeed fundamental. It’s important to remind ourselves why, and to have the reasons at our fingertips when that right is called into question.

More here.