Problem: After extensive alterations the Zapruder Film is still not acceptable for public viewing!
Although most Secret Service complicity was edited out, the forgers could not remove evidence of a frontal head-shot so they decided to sit on the film for as long as possible via CIA’s “cut-out” civilian propaganda organ, Time-Life owning the film, until public outcry demand its release. Solution: Admit later to a “second gunman” on the grassy knoll after another government whitewash committee investigates so researchers could be led on “wild goose-chases” trying to identify who he was, while admitting to only a small conspiracy. The actual large conspiracy that murdered JFK goes unrevealed and unpunished.