As you hopefully are aware, today is the 50th anniversary of Martin Luther King’s powerful, moving and memorable I have a dream… speech. In a just world, that speech would be in the public domain. And, legally, it might be. While King did apparently send a copy of the speech to the Copyright Office, he did so as an “unpublished work.” There has been a dispute, then, about the speech itself, since that would be a publication. His estate, however, has argued that the speech was not a “general publication,” but rather a “limited publication” and thus King retained a common law copyright — and an appeals court appeared to agree, but the lawsuit over this was settled without a final ruling, and no one has challenged it since. However, King’s estate has been ridiculously aggressive in trying to lock up his speeches and take down videos commemorating his talks, with a focus on this momentous speech.