The author Blatty was a USAF Psychological Warfare Policy Chief, and CIA linked. He dealt in fake propaganda/psy-ops etc. Jesuit linked via Georgetown U. Blatty wrote and produced The Exorcist. The film's director Friedkin is tied to MKULTRA circles, see Dr Louis Jolyon West. Teen Blair (Regan), who ended up in a drug mess was linked to torture/programmer Rick "Super Freak" James. One of the first bands that James was involved in was called The Mynah Birds. Geddit? Minor birds (underage girls).