"Under SOPN, all copyrighted material which is not licensed under
creative commons or public domain or an equally free and liberal
license (collectively called "public") should be banned from the
Internet. By removing all such material which is not publicly
licensed, SOPN will kill piracy with one blow as there is nothing to
pirate."
https://plus.google.com/u/0/104205134740204626607/posts/Riy9n4Fv2SW
- d.