Legal Question in Constitutional Law in Missouri

Re: Is there a law that prohibits ''Hollering fire in a crowded theater.''

Yes. There's also a law which prohibits talking about bombs at airport security. There's also a law which prohibits one from threatening the life of the President of the United States. We are not free to utter every unwise remark which may result in a serious breach of the peace or cause a riot by those around us.