More than half a century after President John F. Kennedy was assassinated in Dallas, thousands of previously withheld government records were finally released to the public.
But not all of them.
On October 26, 2017, the National Archives released 2,891 records from the government's massive collection of documents related to Kennedy's assassination.
The date had been circled for years.
Under a law enacted by Congress in 1992, assassination records that remained secret were generally supposed to become public after 25 years unless the president determined that continued withholding was necessary to prevent identifiable harm involving national security, intelligence operations, law enforcement or foreign relations.
October 26, 2017 was that deadline.
Donald Trump initially suggested that the remaining records would be released.
But as the deadline approached, intelligence and law-enforcement agencies urged the president to allow some information to remain secret.
Trump agreed.
Thousands of pages became available.
Other information remained behind blacked-out sections and government restrictions.
Fifty-four years after Kennedy's assassination, the United States was still not ready to disclose everything.
A Law Born From Decades of Suspicion
John F. Kennedy was assassinated on November 22, 1963, while riding in a presidential motorcade through Dealey Plaza in Dallas.
Lee Harvey Oswald was arrested and accused of killing Kennedy.
Two days later, before Oswald could stand trial, nightclub owner Jack Ruby shot and killed him inside the basement of Dallas police headquarters.
The Warren Commission subsequently concluded that Oswald had acted alone.
But public suspicion surrounding Kennedy's assassination never disappeared.
Questions about the CIA, FBI, Cuba, organized crime, the Soviet Union and government investigations fueled decades of books, documentaries and conspiracy theories.
A renewed wave of public interest followed the 1991 release of Oliver Stone's film JFK, which dramatized allegations of a conspiracy and emphasized the existence of still-secret government records.
Congress responded the following year.
The JFK Records Act
In 1992, Congress passed the President John F. Kennedy Assassination Records Collection Act.
President George H.W. Bush signed it into law on October 26, 1992.
The legislation created a centralized government collection of assassination-related records at the National Archives.
It also established a strong presumption in favor of disclosure.
An independent body known as the Assassination Records Review Board spent several years reviewing records and determining what could be released.
Millions of pages eventually became public.
By 2017, the National Archives estimated that approximately 88 percent of the collection was available in full, with another 11 percent released with some information redacted.
Only about one percent remained withheld entirely.
But because the collection contained approximately five million pages, even that small percentage represented a substantial amount of material.
The law established a final deadline.
Twenty-five years after enactment — October 26, 2017 — previously withheld assassination records were supposed to be disclosed unless the president personally authorized continued postponement under the standards established by the law.
That decision now belonged to Donald Trump.
Trump Signals That the Files Are Coming
Interest in the approaching deadline intensified throughout October.
Trump publicly indicated that he intended to permit the release of the remaining records.
The announcement generated enormous interest among historians, journalists and researchers.
The possibility immediately produced speculation that previously secret documents might finally answer longstanding questions about Kennedy's assassination.
But the National Archives cautioned against assuming that the files contained some hidden solution to the case.
The term “assassination record” had been deliberately defined broadly.
The collection included records concerning intelligence operations, Cuba, the Soviet Union, organized crime and individuals or events that intersected in various ways with investigations surrounding Kennedy's death.
Many documents could therefore be historically interesting without revealing anything fundamentally new about the assassination itself.
Still, after decades of secrecy, researchers wanted to see them.
Intelligence Agencies Ask Trump to Hold Some Back
As the deadline approached, executive agencies asked the White House to continue withholding portions of the collection.
Their arguments were familiar.
Some information could reveal intelligence sources and methods.
Other material potentially affected law-enforcement interests.
Some information involved foreign governments or sensitive diplomatic relationships.
The president ultimately accepted some of those requests.
Trump wrote that the American people deserved as much access as possible to the assassination records.
But he also said agencies had presented concerns involving national security, law enforcement and foreign affairs.
He therefore permitted certain information to remain temporarily withheld.
The decision meant the October 26 deadline would not produce the complete, unredacted release some researchers had expected.
2,891 Records Go Public
The National Archives nevertheless released 2,891 records on October 26.
The material included records originating with agencies including the CIA and FBI as well as documents connected with congressional investigations and other government bodies.
Researchers immediately began downloading and examining the files.
The records offered another window into the Cold War intelligence world surrounding the Kennedy assassination.
They included material involving Cuba, anti-Castro activities, intelligence operations, surveillance and government investigations.
But there was no single document that suddenly overturned the established history of November 22, 1963.
Instead, researchers encountered what government archives often contain:
memoranda,
intelligence reports,
investigative records,
communications,
administrative documents,
and fragments of information that required historical context to understand.
For historians, that material could be enormously valuable.
For anyone expecting a single page identifying a hidden mastermind behind Kennedy's assassination, the release was something very different.
Trump Orders Another Review
Trump did not simply permit the agencies to keep their requested redactions indefinitely.
He gave them 180 days.
Agencies were ordered to review the remaining information again and justify any continued secrecy.
The standard was supposed to be demanding.
Information should continue to be withheld only in rare circumstances where disclosure would cause an identifiable harm involving military defense, intelligence operations, law enforcement or foreign relations — and where that harm outweighed the public interest in disclosure.
The new deadline was April 26, 2018.
The National Archives would release additional documents on a rolling basis before then.
That process began almost immediately.
Hundreds more records were released on November 3.
Thousands followed on November 9.
More came on November 17 and December 15.
The October release therefore became the beginning of another wave of disclosure rather than the final opening of the archive.
Why Were Decades-Old Records Still Sensitive?
The continuing secrecy raised an obvious question.
Kennedy had been dead for 54 years.
Oswald was dead.
Many of the government officials involved in the original investigations were dead.
Why could information from the 1960s still be sensitive?
The answer was that intelligence records can reveal more than historical events.
They may identify intelligence sources.
They can disclose surveillance methods.
They may reveal cooperation with foreign governments or intelligence services.
They can expose information about people who were never accused of crimes.
And some records in the JFK collection extended well beyond 1963 because later investigations continued examining the assassination and related subjects.
That did not satisfy everyone.
Critics of continued secrecy argued that after more than half a century, the government should face an extraordinarily high burden before withholding anything connected to an event that had generated so much public distrust.
Congress had largely embraced that principle when it passed the JFK Records Act.
The dispute was over whether particular information still justified an exception.
The Secrecy Fuels the Mystery
There was another consequence to keeping anything hidden.
Every withheld page encouraged speculation about what remained behind it.
That had been one of the central problems surrounding the Kennedy assassination for decades.
Government secrecy did not necessarily prove the existence of an assassination conspiracy.
But secrecy created an environment in which conspiracy theories could thrive.
If the government insisted that some information remained too sensitive to disclose more than five decades later, skeptics naturally asked why.
Perhaps the answer involved nothing more dramatic than intelligence sources, diplomatic sensitivities or bureaucratic caution.
But without disclosure, the public could not independently make that judgment.
The government was effectively asking Americans to trust that the secret information was not historically significant.
For an assassination that had produced generations of distrust, that was a difficult request.
The Files Continue to Open
The October 26 release was not the end of the story.
Additional records were released throughout late 2017 and again in April 2018.
Trump subsequently authorized some information to remain withheld beyond the April deadline after agencies again argued that disclosure could create identifiable national-security, law-enforcement or foreign-affairs harms.
The process of reviewing and releasing JFK records would therefore continue under later administrations.
What had been envisioned as a definitive 2017 disclosure deadline instead became another stage in a much longer process.
Fifty-Four Years Later
The assassination of John F. Kennedy occupied a unique place in American history.
It was both a documented historical event and a national mystery that generations of Americans continued to examine.
Millions of pages had been released.
Investigations had been conducted.
Witnesses had been interviewed.
Government commissions had issued reports.
Researchers had spent decades reconstructing events minute by minute.
Yet government secrecy continued to surround portions of the historical record.
On October 26, 2017, another large piece of that record became public.
2,891 records were released.
Thousands of pages became available to historians, journalists and anyone else willing to search through them.
But the day's most consequential revelation may have been simpler than anything contained in the files themselves.
The deadline had arrived.
And the government still wasn't ready to reveal everything.