Westborough Baptist Church - free speech.

[Minimalist]

Current law in the US, as defined by the Supreme Court, is basically that the government cannot regulate speech unless it is basically an incitement to riot.  But that only protects the speaker from being jailed.  If he pisses someone off to the point of violence he runs the risk of assault.  That is why permits are issued so that the police can have a presence to "keep the peace" if need be.