Public Knowledge, a public interest group fighting SOPA and PIPA, believes that its email to supporters has been plagiarized by its rivals, Creative America, an MPAA-funded astroturf group that lobbies in favor of PIPA. The copyright lobby sent a note to supporters that had a number of similarities (including word-for-word lifts) to a Public Knowledge email sent four days earlier. It’s all fair use, of course, but then again, the MPAA claims that fair use isn’t a right, and that no one should rely on it, and that anyone who wants to quote someone else should always get permission.