Here's something I end up telling my 9 year-old daughter frequently: There are no such things as "bad words"; there are only words that upset some people when they are spoken.
And, yet, words which represent true evil aren't usually included in that list by most people.
Words like "government", "police", "laws", "State", "arrest", "vote", and things of that nature are actually much worse than the words most people get upset over and call "profanity" or "obscenity". They represent the mainstream acceptance of truly evil acts. Acts of archation.
I apologize for the foul language used above. You'll live.