The original article did not say that Franz's books mentioned wiretapping but used the words electronic surveillance. Members of Greece's Bethel were arrested after using a camcorder to secretly record ex-JW's who were holding a private Memorial observance, and Ray mentions this. It was done from a van. Ray Franz also tells of elders in bushes using binoculars to watch a house until the JW owner spotted them then came up behind them and snapped their picture.
The word Phineas has sometimes been used for those trained by the Service Department for they are willing to do anything for Brooklyn Bethel on a wink and a nod instead of in writing. Among other things the man Phineas in the scriptures rammed a spear through the private parts of a couple in the act of sex, an act of violence deemed okay because it was done for Jehovah. Some underground JW members and ex-members have complained that they believed they were wiretapped and worse but have been blown off as liars or mental cases by ex-JW's as diverse as Bill Bowen. They will tell you they still do not believe the Watchtower Service Desk or its associates would stoop to such things. Bill called Raven his friend yet could not accept her warnings about this. Ask him.
Seraphing refers to the dark side doings of some of the membership including those called congregation detectives, congregation angels or messengers. Few JW's know spying is done on them by some, although not all, elders, and some of their most trusted non-elder helpers. Probably every church group interested in Armageddon has its wackoes. Also, use the large wine-red colored Watchtower concordance to search the New World Translation for verses with words such as +Jehovah +"evil spirit" or similar words and you will find some interesting things.
Last of all, Betheljack is a term sometimes used by Bethelites in referring to the biggest fanatics there in Brooklyn. You can talk to Jim Penton for one about that term.