Actually free speech rights do apply here, just as they apply everywhere you go. But one thing people all to often do not know, for what ever reason or simply do not care about is that free speech is not an absolute. It was never meant to be.

An example of that is this: I have the right to say I do not like a person, & the right to express my reasons behind my dislike or contempt of said person. And I can do so with out getting in to any kind of legal trouble over saying these things. But I do not have the right to say because I hate a perosn I am going to kill or harm that person & expect to get away with uttering such a threat with out getting in to some kind of trouble by the law.