If they interviewed everyone at that parade, what they were doing etc, and some of those people were completely uninvolved but maybe having affairs, or doing something immoral (whatever that is), then shouldn’t they be afforded privacy? Eg Imagine one would be mortified to have what sex toy was in their pocket at the time documented in public transcript.
There were people in the crowd who can easily be identified, too. For example, Zapruder’s testimony would have to leave out that he shot a movie and was life on television that day, and quite a few other details to anonymize it.
The first thing that comes to mind is Sandy Hook. Those poor parents being harassed by people accusing them of being “false flag” actors and all that nonsense. If you were a key witness in the JFK assassination you can bet nutjobs hell bent on some conspiracy theory or another are going to track you down and harass you.
Not to mention the way more vanilla stuff: people whose testimony incriminated friends, family members etc etc
FTFY