Do you have any idea why the Government refuses to declassify vast amounts of information on American POWs from WWII who were "liberated" by the Red Army from German POW camps? During the '90's, I and others had many FOIA requests concerning sightings of Americans in the Soviet GULAG turned down on National Security Grounds. We got a few reports released, but many, many thousands of pages of information remains classified. These were all specific documents we requested. It is said that many documents in the Eisenhower Library, concerning the POWs, will not be declassified during the life-time of anyone now alive. Is this the kind of thing you support?
PART V. CONCLUSIONS
(148) Despite these efforts, the committee was not able to determine precisely what happened to the missing materials. The evidence indicates that the materials were not buried with the body at reinterment. It seems apparent that Angela Novello did remove the footlocker containing to the materials from the office of Mrs. Lincoln at the direction of Robert Kennedy, and that Herman Kahn had knowledge of this transaction. After the removal from Lincoln's office, Robert Kennedy most likely acquired possession of or at least personal control over these materials. Burke Marshall's opinion that Robert Kennedy obtained and disposed of these items himself to prevent any future public display supports this theory.
(149) There are least two possible reasons why Robert Kennedy would not have retained the autopsy photographs and X-rays. First, the only materials retained were physical specimens from the body of his brother: Tissue sections, blood smear slides, and the container of gross material. He may have understandably felt more strongly about preventing the misuse of these physical materials than the photographs and X-rays. Second, the Justice Department under Ramsey Clark pushed hard to acquire the photographs and X-rays but did not request the physical materials. Even if Robert Kennedy had wished to prevent the release of all the autopsy materials, he was not in a position to do so when confronted with Justice Department demands.
(150) Consequently, although the committee has not been able to uncover any direct evidence of the fate of the missing materials, circumstantial evidence tends to show that Robert Kennedy either destroyed these materials or otherwise rendered them inaccessible.
Surprisingly, considering all we've heard about this, this is not much of a mystery. There is a paper trail on the brain. It turns out that Bobby Kennedy removed it and all the biological samples from the archives.
See here