Legislation in the House of Representatives, H. R. 3687, would “amend section 1464 of title 18, United States Code, to provide for the punishment of certain profane broadcasts, and for other purposes.” The bill actually lists words that are “profane.”
George Carlin once had a routine where he said the “seven words you can’t say on television.” [7KB wav file]. Note: This sound file contains seven words some might consider offensive.
Compare and contrast.