That can't possibly be not true. The state has not and can not have any role in determining what is "true", if only freedom of speech has any value. As soon as the state gets to decide what is "true" and ban speech on that basis, freedom of speech is destroyed. In the USSR, there was a section in the criminal code banning "knowingly false statements defaming the state and the social order". Obviously, people who were punished under this section were ones that said anything that the communist regime didn't like, and their statements always were "knowingly false", because the same communist regime decided what is false and what is not. I don't think the US should follow this example. That's why the Constitution exists and why the First amendment is the first one. Because it's that important. Yes, the price of it is somebody can say something you don't like. You'll survive it.