From 2012, but very relevant these days:
Ninety-three years ago, Justice Oliver Wendell Holmes wrote what is perhaps the most well-known -- yet misquoted and misused -- phrase in Supreme Court history: "The most stringent protection of free speech would not protect a man in falsely shouting fire in a theatre and causing a panic."
Without fail, whenever a free speech controversy hits, someone will cite this phrase as proof of limits on the First Amendment. And whatever that controversy may be, "the law"--as some have curiously called it--can be interpreted to suggest that we should err on the side of censorship. Holmes' quote has become a crutch for every censor in America, yet the quote is wildly misunderstood.