Recently a fox news headline read "Sandy Hook Conspiracy Theory Tests Limits of Free Speech", suggesting that such a thing even exists when it comes to the realm of politics, philosophy or controversial news.
The fact that this is even being discussed in this context shows that the media is making subtle hints that the alternative sources and viewpoints must be silenced.
The video below appeared linked in the article:
the free speech zones set up by the shrub administration? Freedom of speech has been dying a slow miserable death for many decades. A pacemaker couldn't bring it back at this point. Although historically, it is moot.