The 2nd Circuit Court of Appeals has struck down a 2004 Federal Communications Commission (FCC) policy that would ban broadcasters every time a single curse word was uttered on live TV. The Court held that the policy was so vague that it threatened the heart of the First Amendment.
Under the policy, all "patently offensive" references to sex, sex organs, and excretion were prohibited. The Court found those terms to be vague, and the policy did not offer sufficient guidance to allow compliance. As a result, the Court held the policy chilled free speech under the First Amendment, saying "This chill reaches speech at the heart of the First Amendment . . . ."
FCC Swearing Policy Tossed By Federal Court | The Huffington Post