From CNN (for what it’s worth) regarding Kennedy data:
“The vast majority of the almost 1,500 documents released by the National Archives as new appear to be duplicates of previously released documents with only a few redacted words now revealed…Some have no changes whatsoever.
The release still leaves more than 10,000 documents either partially redacted or withheld entirely”
The 9/11 data is in a similar situation. Much unreleased/classified data.
