Correction, Paul, Clearbird IS open source; effectively it is an attempt to open source the subject of scientology. CB is free to distribute and invites further development and adaptation of new tech. Just as with the gpl, CB is intended to be itself republished in an unaltered form so as to preserve the original content, but NOTHING in CB precludes others adding their own technical developments to the subject of auditing and passing them on to others.
Open source is about preservation as much as it is about innovation and distribution. Hence the use of existing copyright in an innovative way to protect the rights of users. CB is, for all intents & purposes, Open Source Scientology, in contrast to the strictly closed source version controlled by the Co$.
Mark A. Baker