Government agencies requested that some records remain classified and these were reviewed under section 6 criteria of the JFK Act .
From 1994 until 1998 , the Assassination Records Review Board gathered and unsealed about 60,000 documents , consisting of over 4 million pages .
Government agencies requested that some records remain classified and these were reviewed under section 6 criteria of the Assassination Records Review Board   .
From 1994 until 1998 , the Assassination Records Review Board gathered and unsealed about 60,000 documents , consisting of over 4 million pages .