Reading the following will give you further understanding of the current planetary and interplanetary scene. It is not required reading for doing Excalibur but it is useful data.

scientologyintegrity.org - A time track of Church history and an Evaluation of it
ronstech.org - Exposes and corrects intentional misapplication of tech by the Enslavers
ronsorgusa.org - Provides the Rons Org materials and corrects misapplications of it
hasi.ws - The web site of our On-Source Auditor Association

The HASI has three areas of responsibility:

1. Create the products of Clear, Theta Clear, OT, and Free Spiritual Being
2. Handle the third dynamic engram - the Enslaver takeover of the Church
3. Handle the fourth dynamic engram - the Enslaver plan to make men slaves