The U.S. Supreme Court on Tuesday threw out the stalking conviction of a Colorado man who sent hundreds of unwanted Facebook messages to a female musician, ruling that state prosecutors had not shown that he was aware of the "threatening nature" of his statements.
If I understand right, this is a clarification (of sorts) to the standard of “true threat”. Ken White covers a lot of first amendment speech issues and has a very good explanation here: https://popehat.substack.com/p/supreme-court-clarifies-true-threats