The Supreme Court of the United States has vacated a stay by the 5th Circuit in the NETCHOICE case. This is important, but understanding its importance requires some explanation. So bear with me. Netchoice is a trade association that represents major social media platforms. It filed an action against a law that prohibits social media platforms from censoring their users. Suppose Hans tweets out, "There was no Holocaust -- Hitler was a great leader and the world needs more like him." The law means Twitter can not take that down. At some point in the life of this blog I have probably mentioned the shopping-mall cases of the early 1970s. The gist of them is that the Supreme Court does not recognize private corporations, even when they operate public spaces, as state actors. Hans has no right to hand out Nazi leaflets in the food court of a mall. Indeed, the mall's corporate owners (corporations are people) have their own free speech rights which entail the right to stop