Copyrights And Copywrongs

The National Public Radio ("NPR") program, On The Media, rebroadcast one of its best 2013 episodes on December 29, 2013.  On The Media describes this episode, entitled "The Past, Present, and Future of Ownership," as follows:

A special hour, originally aired in March, on our changing understanding of ownership and how it is affected by the law. An author and professor who encourages creative writing through plagiarism, 3D printing, fan fiction & fair use, and the strange tale of who owns "The Happy Birthday Song."

Here is a podcast of the episode.
After listening to it, you may never again blithely click "Copy" on your computer.