Am I allowed to copyright a work derived from a collage of other people's works? If I incorporated one of your posts into a blog post of mine, could I copyright the entirety of the blog post?
According to the letter of the law, King's estate should have been entitled only to copyright the portions of the "I Have a Dream" speech that contained 100% original material [1]. Yet these are not the most recognizable or famous portions of the speech, and they're not the portions King's estate has often licensed out to advertisers, etc. Almost all of the words most famously associated with the "I Have a Dream" speech are borrowed from other source material. And, unless I'm missing something -- I'm not a lawyer, so that's possible -- they should not have been granted to King's estate in the first place. Perhaps the current laws on the books took effect after that granting?
[1]From 17 U.S.C. SS 103(b): "The copyright in a compilation or derivative work extends only to the material contributed by the author of such work, as distinguished from the preexisting material employed in the work, and does not imply any exclusive right in the preexisting material. The copyright in such work is independent of, and does not affect or enlarge the scope, duration, ownership, or subsistence of, any copyright protection in the preexisting material."