I still believe the SCOTUS is trying to uphold the principles in the Constitution, for now. And there are already limits on what one can say in public, yelling fire in a theater when there's no fire is not far from what FOX is doing. Lying at this scale to cause panic based on such lies has demonstrable deleterious effects on society. The effect is delayed due to the scale of the target groups, but the principle is the same and courts/juries are able to observe this when it happens.