The point is that under the First Amendment, the government shouldn't be able to do this for any reason (aside from the usual "fire in a crowded theater" or "di

The point is that under the First Amendment, the government shouldn't be able to do this for any reason (aside from the usual "fire in a crowded theater" or "disclosing state secrets" kinds of exceptions). Basically, if only "speech criticizing the government" were protected by the First Amendment, then the government could just claim "but this wasn't really criticism". So the Founders made the First Amendment broader than that. And under the Fourth and Fifth Amendments, taking away property without due process is forbidden.