I read in the papers (which probably means this isn't even true, but hey) a couple of weeks ago about a man who put up a sign in his front room window that read, "Religions are Fairy Tales for Grown Ups." (or something to the same tune) The article went on to say that the police have not YET ordered him to take it down, but have advised him he probably should.
Now, I don't hugely like the idea of Atheists putting up signs like this as it seems like something a Christian would do, shoving your beliefs in other people's face, but he undoubtedly has the right to display any sign or express any opinion he wants to, so long as it doesn't incite violence. The sign may be, in my opinion, crass, but it is just a statement that doesn't hurt or opress anyone.
As far as I can see, the police have no business talking to this gentleman unless someone intends to hurt him in retaliation, but the article didn't portray this scenario at all. It came form the angle that the sign was provocative, and may cause crime or civil unrest, so the police approached the man displaying the sign as if this was his fault.
Let's get something straight, if someone sees that sign and decides to break the law in retaliation, then he/she is a criminal, NOT the person who wrote it. Had it been a Muslim gentleman who displayed an Islamic sign, the police would show up in force to ensure no violent reprisal could jeopardize his freedom of speech, and rightly so. But an Atheist does the same and the police pop by to "advise" the man, before they inevitably censor him. Bare in mind that this is true in Britain, officially a Christian nation, but one that is rapidly becoming secular, who's sentiment towards Islam is one of fear and distrust (to put it lightly), yet still Atheists get treated like with the most disrespect in regards to our freedom of speech, as if our opinions are less worthy of protecting because they're not faith based.