Here is the long-and-short of this whole deal in my own opinion:
Maybe there were some legitimate reasons for withholding large amounts of evidence in the years near the assassination - particularly in light of sensitivity for the family.
But here we are 50+ years later and the real meat and details are still being held tightly by the Three-letter agencies. What could possibly still be of relevance to national security that would justify the withholding of ANY of the files on the JFK assassination? WHY the ongoing secrecy?
ANSWER: There is still something MASSIVE and revealing about the abject corruption and scary power held by some over and in our nation.
Yep, they’re corrupt and we’re supposed live in ignorance or pretend like we don’t care, forever.
And under FOIA, do they alter those docs prior to release, IDK.