Intersprocket

Listener questions, evidence-led answers

The Topic Board

Here are questions that can be explored through the historical, legal, and forensic record. Send a suggestion for Mark to consider in a future episode.

Legal & FOIA

Suing for access: inside the Zapruder Film litigation

Case strategy, filings, and what the courts said.

Chain of Custody

Who handled the original film between November 22 and 25, 1963?

Tracing the film from Zapruder’s camera to the Kodak lab in Dallas and the NPIC in Washington.

Chain of Custody

The Hawkeye Works mystery: was the film processed twice?

Comparing Dino Brugioni’s account with CIA briefing board records.

Copyright

Who owns 26 seconds of history?

The copyright question from LIFE magazine to the Sixth Floor Museum.

Forensic Optics

Frame 313: what optics and film grain can and cannot tell us

Bell & Howell lens characteristics, frame rate, and motion blur.

Legal & FOIA

How FOIA requests surface JFK records

What the National Archives releases, redacts, and withholds.

Archives

Reading the 140+ archive documents: where to start

A guided path through the primary-source collection.

Forensic Optics

Ghost images in the sprocket area

What the intersprocket images may reveal about camera mechanics.