Quick: What’s the common thread between the FBI’s refusal to release the Nashville assailant’s manifesto, Congresswoman Stacey Plaskett’s threatened imprisonment of independent journalist Matt Taibbi, and Tucker Carlson’s ouster from Fox News?

If you said “censorship,” you win a Cadillac Eldorado a set of steak knives. If you said something else, then you might not understand the defining issue of our time — which is the freedom to say what we want to say and to hear what we want to hear. Nothing is more fundamental or more important. (There’s a reason why those five expressive freedoms are enshrined in our Constitution’s First Amendment.)

“FOX News Media and Tucker Carlson have agreed to part ways,” the network said in a terse…