You mention Zapruder and Life not seeing "any DIFFERENCES". "Differences" between the Original Zapruder Film that was sold to Life and specifically what other Z film? Dan Rather saw a Zapruder Film copy the weekend of the assassination. During several Live CBS World Wide TV Broadcasts that same weekend, Rather described his seeing a Much Different Zapruder Film than we have today. For starters, Rather described the Z Film Copy he watched showing the JFK Limo turning onto Elm St.
The JFKA was Rather's ticket to the big time, and he knew it.
He had to say
something, even though he was out of breath, had no notes, and had been allowed to view the clip only one time.
He blew it on several counts, and people didn't realize he'd made up the "I saw the limo turn onto Elm Street in the Zapruder film" aspect of it until at least 12 years later when muckraking Giraldo Rivera showed on national TV a copy of said film that had been stolen by "photo expert" Robert Groden.
D'oh