The Commission's key findings were:
Senator Moynihan reported that approximately 400,000 new secrets are created annually at the highest level, Top Secret. That level is defined by law as applying to any secret that, were it to become public, would cause "exceptionally grave damage to the national security."1 In 1994, it was estimated that the United States government had over 1.5 billion pages of classified material that were at least 25 years old.
In 1995 President Bill Clinton's Executive Order 12958 updated the national security classification and declassification system. This Executive Order established a system to automatically declassify information more than 25 years old, unless the government took discrete steps to continue the classification of a particular document or group of documents.
Cold War secrecy[edit]
The Commission findings regarding government secrecy in the early Cold War period have led to a reevaluation of many public perceptions regarding the period. By 1950, the United States government was in possession of information which the American public did not know: proof of a serious attack on American security by the Soviet Union, with considerable assistance from an enemy within. Soviet authorities knew the U.S. government knew. Only the American people were denied this information.2
One revelation of the Venona project intercepts is that many Americans who spied for the Soviet Union were never prosecuted. To do so the government would have to reveal what it knew.3 On 29 May 1946, Federal Bureau of Investigation (FBI) Director J. Edgar Hoover sent a high administration official a memorandum reporting "an enormous Soviet espionage ring in Washington." Undersecretary of State Dean Acheson was (falsely) at the top of the list. Truman distrusted Hoover and suspected Hoover of playing political games. Acheson's inclusion at the top of the list automatically discredited other accusations which were on target, Alger Hiss and Nathan Gregory Silvermaster.[1] In late August or early September 1947, the Army Security Agency informed the FBI it had begun to break into Soviet espionage messages. Truman had never been told of the existence of the Venona project, and always insisted Republicans had trumped up the loyalty issue for political gain.
The prosecutors in the internal-security cases of the 1940s did not know they had not been given all, or even the best government evidence, against the Rosenbergs, and others. The Venona project materials would have been conclusive in establishing the cast of characters in the Soviet spy networks.5 Government secrecy allowed critics of the Rosenberg and Hiss cases to construct elaborate theories about frame-ups and cover-ups. For years the Rosenbergs' defenders demanded that the government reveal its secrets about the case. When Secrecy Commission forced the disclosure of documents, the secrets revealed the government's case was even stronger.6 "Over the years," said Ronald Radosh, "the Rosenbergs' defenders have loudly demanded the release of government documents on the case, only to deny the documents' significance once they are made public."7 As archives of the Cold War are opened, the original case made against Soviet espionage in the United States has received ever more conclusive corroboration.8