It's not the lawless action exception that I'm talking about, it's the harm to others one. The classic example is yelling "fire" in a crowded building which I t

It's not the lawless action exception that I'm talking about, it's the harm to others one. The classic example is yelling "fire" in a crowded building which I think has its parallels to yelling "autism" in response to vaccines. Interestingly, the precedent-setting case was with a guy distributing pamphlets persuading people not to enlist for WW1 which doesn't seem remotely close to any of these scenarios. The real reason why it's a moot point, though, is that no government would have the political will to legislate on something as divisive as this.