This Brief is an AI-generated synthesis of the public record. It may contain errors, omissions, or out-of-date information, and is not legal advice or original reporting. Verify against the primary sources before relying on it.

THE BRIEF: The Assassination of President John F. Kennedy

SECTION 1 — VERDICT

On November 22, 1963, President John F. Kennedy was fatally shot while riding in an open motorcade through Dealey Plaza in Dallas. The weight of forensic and eyewitness evidence firmly establishes that Lee Harvey Oswald, an employee of the Texas School Book Depository, fired the shots that struck the President and Governor John Connally from the sixth‑floor window. Oswald’s rifle, his finger‑prints on it, the spent cartridge casings at the scene, and the wound trajectories documented by the Bethesda autopsy and later reviewed by the House Select Committee on Assassinations all point exclusively to the Depository as the source. Oswald’s prior attempt to kill General Edwin Walker and his erratic personal history add weight to the conclusion that he was the gunman. The Warren Commission’s finding that Oswald acted alone was later modified by the HSCA, which, on the basis of controversial acoustical evidence later undercut by the National Academy of Sciences, held that there was a high probability of a second gunman on the grassy knoll. The physical evidence, therefore, establishes Oswald as the shooter; it does not, by itself, resolve the matter of whether others assisted, directed, or knew of his actions. Critically, the record shows that federal agencies—particularly the Central Intelligence Agency and the Federal Bureau of Investigation—withheld material information from the official inquiries and misled investigators in ways that fundamentally compromised the search for a possible conspiracy.

The indicators are substantial and cluster around a pattern of deliberate concealment. The CIA’s case officer George Joannides directed and financed the anti‑Castro exile group DRE, which had direct contact with Oswald months before the assassination; the agency subsequently hid Joannides’ role from the Warren Commission, misled the HSCA about the CIA’s relationship with the DRE, and, decades later, denied even the existence of an officer known as “Howard”—a cover name Joannides used. The FBI, for its part, wiretapped and bugged the residence of Marina Oswald without disclosing the surveillance to the Warren Commission, and Director J. Edgar Hoover moved to classify the case as closed the day after Oswald’s death with the teletyped statement, “There is nothing further on the Oswald case except that he is dead.” The CIA’s own Inspector General had warned that once covert operations became public, higher authority should have been informed—a warning ignored as the agencies closed ranks. The cumulative effect of these actions suggests that the agencies, fearing exposure of their own lapses and possibly illegal operations, worked to limit the inquiry and entrench the narrative that Oswald acted entirely alone. This reading cannot be proven from available public evidence. It also cannot be dismissed.

What the evidence cannot establish is the full scope of any conspiracy or the precise role the agencies played in suppressing the truth. The acoustic evidence for a second gunman is scientifically disputed; claims of a broken chain of custody of Kennedy’s body and missing evidence remain unsubstantiated; and no direct proof ties any federal official or agency to a plan to assassinate the President. The possibility that Oswald had accomplices—whether from organized crime, anti‑Castro groups, or within government—is not confirmed. The actions of the CIA and FBI, while deeply compromising the investigation, do not themselves prove that a conspiracy existed. The honest limit is that the public record, even after repeated declassification efforts, has been so thoroughly shaped by decades of institutional defensiveness that a definitive answer may never be reachable.

SECTION 2 — CASE SUMMARY

President John F. Kennedy was assassinated on November 22, 1963, in Dallas, Texas, during an open‑motorcade ride through Dealey Plaza. Shots from the southeast‑corner window of the sixth floor of the Texas School Book Depository struck the President twice from behind, killing him; Texas Governor John Connally was also wounded but survived. A bystander, Abraham Zapruder, filmed the entire sequence with an 8 mm camera, and his silent color film became the iconic visual record of the killing. Within an hour, Dallas police officer J. D. Tippit was shot dead, and later that afternoon Lee Harvey Oswald, a 24‑year‑old Depository employee and former Marine who had defected to the Soviet Union, was arrested after a scuffle in a movie theater. Two days later, as Oswald was being transferred from police headquarters, nightclub owner Jack Ruby stepped from a crowd and shot him at point‑blank range, an act witnessed by a national television audience.

President Lyndon B. Johnson rapidly appointed the Warren Commission, chaired by Chief Justice Earl Warren, to investigate. The Commission heard testimony from 550 witnesses, reviewed voluminous files from the FBI and other agencies, and delivered an 888‑page report in September 1964. It concluded that Oswald had fired all the shots and acted alone, finding no credible evidence of a conspiracy and no significant association between Oswald and Ruby. The Commission’s case rested heavily on ballistic matches between the Mannlicher‑Carcano rifle ordered by Oswald, cartridge casings found on the sixth floor, and neutron‑activation analysis that linked the bullet fragments to that weapon.

Public doubt never subsided. In 1976, the House Select Committee on Assassinations reopened the investigation and unearthed significant new information: the CIA’s covert relationship with the anti‑Castro exile group DRE, which had direct contact with Oswald; the FBI’s undisclosed wiretapping of Marina Oswald; and a Dictabelt recording from a Dallas police motorcycle that acoustic experts interpreted as containing four gunshots, including one from the grassy knoll. Based on that acoustical evidence, the HSCA concluded that there was a “high probability” of a second gunman, though a later review by the National Academy of Sciences determined that the sounds had been recorded about a minute after the assassination, rendering the acoustical case scientifically unsound. The HSCA also found that the mobster Carlos Marcello had the motive, means, and opportunity to have the President killed, but it could not establish that he actually did so.

The case remains contested because the conduct of the intelligence and law‑enforcement agencies raises profound questions about whether the full truth was ever pursued. The CIA and FBI repeatedly withheld information, misled investigators, and obstructed document releases for decades. In 1992, Congress created the Assassination Records Review Board to force declassification, and most records are now public, but the agencies’ history of concealment—including the belated exposure of the Joannides‑DRE connection in 2025—has left an indelible mark on public trust. The persistent unresolved question is not whether Oswald fired the shots, but what the government knew, when it knew it, and why it worked so aggressively to keep the investigation narrow.

SECTION 3 — FULL RECORD

Evidentiary Posture

The available record is extraordinarily large, comprising more than six million pages of documents, photographs, motion pictures, sound recordings, and physical artifacts held by the National Archives. The creation of the President John F. Kennedy Assassination Records Collection and the work of the Assassination Records Review Board have made most of this material public. However, the record is also profoundly compromised: for decades the CIA and FBI wielded classification authority to withhold, redact, and delay the release of sensitive files, and even after the JFK Act of 1992 mandated disclosure, key documents remained concealed. The most recent large‑scale release, in March 2025, added over 80,000 pages, including records that had been previously denied. Because the intelligence agencies themselves had investigative and custodial roles, much of the evidence they generated cannot be treated as independent; their institutional interest in protecting their reputations and concealing operational secrets is well documented. The search for the truth has therefore been shaped from the outset by the very agencies whose conduct is in question.

Observed Facts vs. Inferred Claims

Observed facts—those documented by contemporaneous primary sources or multiple independent witnesses—include: Oswald’s employment at the Depository; the recovery of his Mannlicher‑Carcano rifle, his fingerprints on the weapon, and three spent cartridge casings on the sixth floor; the wound trajectories showing the President was hit from behind; the Zapruder film; the official autopsy report; Oswald’s arrest and his own statements; and the fact that the CIA and FBI withheld information from the Warren Commission and the HSCA.

Inferred claims that require careful attribution include: the single‑bullet theory (a single bullet causing seven wounds); the acoustic evidence for a fourth shot from the grassy knoll (strongly contradicted by a subsequent National Academy of Sciences study); the allegation that the chain of custody of Kennedy’s body was broken and that brain tissue and other evidence are missing (advanced by former ARRB analyst Douglas Horne but not substantiated by any official body); and the many theories that assign motive and responsibility to specific individuals or groups—the mob, anti‑Castro Cubans, the CIA itself—none of which rest on direct proof.

Figure Inventory

Figure	Role	Status	Confidence / Key Detail
John F. Kennedy	President, victim	Deceased	DOCUMENTED
Lee Harvey Oswald	Shooter, TSBD employee	Deceased	DOCUMENTED (identified as the shooter by both Warren Commission and HSCA)
Jack Ruby	Oswald’s killer	Deceased	DOCUMENTED
John B. Connally Jr.	Governor, wounded	Deceased	DOCUMENTED
Marina Oswald Porter	Oswald’s widow	Living	DOCUMENTED (FBI wiretapped her residence without Warren Commission’s knowledge)
Abraham Zapruder	Filmed the assassination	Deceased	DOCUMENTED
Howard Brennan	Eyewitness to shooting	Deceased	DOCUMENTED
Mary Moorman	Took Polaroid near grassy knoll	Deceased	DOCUMENTED (saw nothing unusual)
Buell Wesley Frazier	Co‑worker who drove Oswald between Irving and Dallas	Living (likely)	DOCUMENTED (the arrangement was described by the Warren Commission as “innocent”)
Ruth Hyde Paine	Friend with whom Marina lived; inadvertently discovered evidence of Oswald’s Walker attempt	Living (likely)	DOCUMENTED (stored Oswald’s rifle in her garage)
George de Mohrenschildt	Petroleum geologist, occasional CIA informant, friend of Oswald	Deceased	DOCUMENTED (died while awaiting HSCA testimony)
Clay Shaw	Businessman, CIA Domestic Contact, acquitted of conspiracy	Deceased	DOCUMENTED (sole criminal trial for JFK assassination; acquitted)
David Ferrie	Civil Air Patrol instructor; photographed with Oswald in 1955	Deceased	DOCUMENTED (died of natural causes in 1967)
Carlos Marcello	New Orleans Mafia chieftain	Deceased	DOCUMENTED (HSCA found him to have motive, means, and opportunity)
Santo Trafficante Jr.	Mafia boss, CIA asset in Castro poison plots	Deceased	DOCUMENTED (testified before HSCA)
Jim Garrison	New Orleans District Attorney who prosecuted Shaw	Deceased	DOCUMENTED
Allen W. Dulles	Former CIA Director, Warren Commission member	Deceased	DOCUMENTED (fired by JFK after Bay of Pigs)
Earl Warren	Chairman of the Warren Commission	Deceased	DOCUMENTED
Richard B. Russell	Senator, Commission member who dissented on the single‑bullet theory	Deceased	DOCUMENTED
Hale Boggs	Commission member; later privately accused Hoover of lying	Deceased	DOCUMENTED
J. Edgar Hoover	FBI Director	Deceased	DOCUMENTED (issued a teletype declaring the case closed on November 23, the day after the assassination)
George Joannides	CIA officer, case officer for the DRE group that contacted Oswald	Deceased	DOCUMENTED (CIA concealed his role from Warren Commission and HSCA; used cover name “Howard”)
John R. Tunheim	Chairman of the ARRB	Living	DOCUMENTED (stated CIA misled the Review Board)
Dan Hardway	Former HSCA investigator	Living	CONTESTED WITH NAMED SOURCE: his own public allegations that CIA obstructed investigation and misled HSCA
Douglas Horne	Former ARRB Chief Analyst for Military Records	Living	CONTESTED WITH NAMED SOURCE: his own allegations of autopsy irregularities and missing evidence; no official corroboration
Robert Blakey	HSCA Chief Counsel	Living (likely)	DOCUMENTED
James J. Humes	Navy pathologist, lead autopsist	Deceased	DOCUMENTED
Cyril H. Wecht	Forensic pathologist, sole dissenter on HSCA panel	Living (likely)	DOCUMENTED (dissented from finding of only rear‑entry shots)
Paul Landis	Secret Service agent	Living (likely)	CONTESTED: claimed he retrieved a bullet fragment from limousine; not corroborated
J. W. “Will” Fritz	Dallas police captain, primary interrogator of Oswald	Deceased	DOCUMENTED (handwritten notes survive; no recording was made)
Vincent P. Guinn	Neutron‑activation analyst	Deceased	DOCUMENTED (testified that fragments derived from only two Mannlicher‑Carcano bullets)
Robert Frazier	FBI lead firearms examiner	Deceased	DOCUMENTED
E. Howard Hunt	CIA officer, Bay of Pigs, Watergate	Deceased	DOCUMENTED (deeply bitter about JFK’s handling of Bay of Pigs)
David S. Morales	CIA Miami operations chief	Deceased	CONTESTED (lawsuit alleges he claimed involvement in JFK/RFK killings; no official finding)
Johnny Roselli	Chicago mobster	Deceased	CONTESTED (alleged link to Ruby in lawsuit; no official finding)
Jean Souetre	French assassin	Deceased	CONTESTED (lawsuit claims he was in Dallas on 11/22/63 and deported by CIA; no official confirmation)
Gordon Liddy	Former FBI agent, Watergate figure	Deceased	CONTESTED (his statements about FBI bugs on JFK and Hoover‑Kennedy feud are unverified)
Frank Ragano	Lawyer for Hoffa and Trafficante	Deceased	DOCUMENTED (made claims about mob‑connected plots; not confirmed by HSCA)
Jack Martin	Ferrie acquaintance	Deceased	CONTESTED (his allegation that Ferrie was to be a getaway pilot was investigated but not substantiated)
Billie Sol Estes	Convicted financier	Deceased	CONTESTED (made conspiracy claims; no official validation)
Carlos Bringuier, Edward Butler	Anti‑Castro activists who debated Oswald	Deceased (likely)	DOCUMENTED
Various additional figures named in the Bothwell lawsuit	—	Mixed	CONTESTED (unproven allegations; no court findings)

Source Weighting

The most reliable sources are the formal official proceedings: the Warren Commission hearings and report, and the HSCA’s final report and its forensic pathology panel. However, both inquiries were handicapped by the very agencies they depended on. The CIA and FBI provided incomplete, misleading, and sometimes false information, so the Commissions’ conclusions must be understood as the best reading of a deliberately narrowed record, not an independent adjudication of all available facts. Next in weight are the findings of the Assassination Records Review Board, which uncovered the Joannides‑DRE concealment and numerous other instances of agency non‑compliance. Expert testimony under oath—from ballistics, pathology, and photographic analysis—carries significant weight but must be evaluated in light of later critiques. Journalistic accounts, FOIA‑driven releases, and lawsuits are valuable for surfacing withheld records, but the unsupported allegations of individuals, however well‑credentialed, cannot substitute for contemporaneous documentary proof. The lowest tier consists of hearsay, memoir claims made decades after the fact, and conspiracy theories that lack any documentary anchor.

Anomalies

Several significant anomalies defy the official narrative and point toward an investigation that was either incompetent or deliberately obstructed.

High

• The CIA, through its officer George Joannides, controlled and funded the anti‑Castro DRE group that had direct contact with Oswald, yet concealed this relationship from the Warren Commission and later misled the HSCA and the ARRB, even denying the existence of an officer called “Howard”—a cover name used by Joannides. The exposure of this lie six decades later is a direct indictment of the CIA’s willingness to steer the investigation away from its own operations.
• The FBI wiretapped and bugged the home of Marina Oswald and never disclosed that surveillance to the Warren Commission, which relied on the Bureau’s representations that it had turned over all relevant material. This concealment deprived the Commission of potentially critical information about Oswald’s contacts and state of mind.
• FBI Director J. Edgar Hoover issued a teletype on November 23, 1963—the day after the assassination—stating, “There is nothing further on the Oswald case except that he is dead.” The rush to close the national‑security dimension of the case before any independent inquiry could begin is starkly at odds with the gravity of the crime and suggests an institutional desire to foreclose further examination.

Moderate

• The HSCA reversed its initial finding (Oswald alone) after an acoustical analysis of a Dallas police Dictabelt indicated a high probability of a fourth shot from the grassy knoll. A subsequent National Academy of Sciences panel demonstrated that the sounds were recorded about a minute after the shooting, leaving the acoustical evidence scientifically untenable. The episode exposes the fragility of the HSCA’s central finding, but also the fact that the investigation was swayed by evidence that later collapsed.
• Ruby’s ability to enter the heavily guarded basement of Dallas Police Headquarters and shoot Oswald, in full view of television cameras, has never been satisfactorily explained. The Warren Commission found no significant association between Ruby and any conspirator, yet the breach of security remains an anomaly.
• There is no recording or transcript of Oswald’s approximately twelve hours of interrogation; only handwritten notes by Captain Will Fritz survive. The absence of a full record of what Oswald said during his final days guarantees that any claim about his statements is incomplete and susceptible to misinterpretation.
• Senator Richard B. Russell, a member of the Warren Commission, filed a dissenting opinion stating that a number of suspicious circumstances prevented him from agreeing that there was no conspiracy. President Lyndon Johnson privately expressed disbelief in the single‑bullet theory. High‑level skepticism within the official apparatus itself signals that the Commission’s conclusions were not uniformly accepted even by its own members.

Low

• The allegations by former ARRB analyst Douglas Horne that autopsy photos show two head shots from the front, that bullet fragments are missing, and that the chain of custody of the body was broken have been repeatedly disputed and have never been accepted by any official investigative body. They remain unsubstantiated opinion.

Motive and Mechanism

Motive. The CIA had clear institutional motives to suppress information: President Kennedy had fired Director Allen Dulles and Deputy Director Richard Bissell after the Bay of Pigs, a humiliation that angered many in the clandestine service; the agency’s anti‑Castro operations had directly intersected with Oswald, and exposure of that connection would have been politically catastrophic; and the CIA had a long history of covert operations and cover‑ups, including the Castro assassination plots, that it wished to keep buried. The FBI, under Hoover, was engaged in an intense personal and institutional war with Attorney General Robert F. Kennedy; Hoover had reason to fear that a full investigation would reveal the Bureau’s own surveillance failures, and his immediate move to shut down the case reflects a defensive posture.

Mechanism. No direct mechanism linking the agencies to the assassination itself has been proven. The mechanism by which they obstructed the investigation was far more mundane yet effective: withholding documents, destroying or failing to produce files, giving false testimony, and using classification authority to block external scrutiny. The CIA misled both official inquiries about the nature of its relationship with the DRE and its knowledge of Oswald; the FBI hid wiretaps and hurriedly closed the case. These actions ensured that the Warren Commission and, to a lesser extent, the HSCA worked with an incomplete and manipulated record.

Competing Theories

A range of alternative theories circulate beyond the lone‑assassin and institutional‑obstruction readings.

Theory	Key Proponent(s)	Summary	Confidence / Evidentiary Basis
Mob conspiracy: Marcello had JFK killed	HSCA (partial), Lamar Waldron	Carlos Marcello, angered by the Kennedy administration’s war on organized crime, orchestrated the assassination using Oswald as a patsy.	LOW. HSCA found Marcello had motive, means, and opportunity, but no direct evidence of his involvement was uncovered. The theory rests on testimony of associates and timing, not hard proof.
Anti‑Castro Cuban exiles	Jim Garrison, various	Cuban exiles, betrayed by Kennedy at the Bay of Pigs, conspired with CIA‑connected figures to kill the President.	LOW. Oswald’s contact with anti‑Castro groups is documented, and the exiles’ motive is strong, but no credible evidence links any specific exile to the shooting. Clay Shaw was acquitted.
Castro retaliation	Some Soviet/Cuban claims	Fidel Castro had Kennedy assassinated in revenge for the CIA plots against him.	VERY LOW. No credible evidence. The HSCA ruled out foreign government involvement.
Accidental Secret Service shot	Some conspiracy theorists	A Secret Service agent in the follow‑up car accidentally fired the fatal head shot.	VERY LOW. No supporting evidence; contradicted by all official investigations.
Soviet element	Cold War speculation	Oswald, a defector with Soviet ties, acted on behalf of the USSR or Cuba.	LOW. The HSCA found no evidence of Soviet or Cuban government direction. Oswald’s trip to the Soviet and Cuban embassies in Mexico City remains unexplained but does not prove complicity.
CIA‑directed hit	Bothwell lawsuit, some researchers	Rogue CIA officers, including David Morales, carried out the assassination.	VERY LOW. Based on hearsay and uncorroborated allegations; no documentary support.

A persistent, well‑anchored reading does not assert that the CIA or FBI orchestrated the assassination, but that both agencies, in order to protect their institutional secrets, systematically obstructed the official investigations and thereby prevented a full accounting of whether Oswald had accomplices or what the government knew beforehand. The indicators are numerous and, taken together, form a pattern that is difficult to attribute to mere incompetence.

The most glaring instance is the concealed role of George Joannides. In 1963, Joannides was the CIA’s case officer for the Directorio Revolucionario Estudiantil (DRE), an anti‑Castro exile group that had direct, documented contact with Oswald in New Orleans only a few months before the assassination. When the Warren Commission inquired about Oswald’s activities, the CIA did not reveal that it was funding and directing the group Oswald had approached. Later, the HSCA was similarly misled; Joannides, who himself later misled the committee about the CIA’s ties to Oswald and the DRE, hid his prior connection to the group. The ARRB discovered the deception, and as late as 1998 the CIA told the Review Board that no officer named “Howard” was known—only for 2025 releases to confirm that Joannides used that cover name. This is not a passive omission; it is an active, multi‑decade effort to keep the connection between the CIA and Oswald’s contact group out of the hands of investigators.

While the CIA was concealing its own ties to Oswald’s circles, the FBI was withholding evidence in its possession. The Bureau wiretapped and bugged the home of Marina Oswald, monitoring her conversations, yet never disclosed this surveillance to the Warren Commission. The Commission’s final report rested on the assurance that the FBI had turned over all relevant information; that assurance was false. In addition, Hoover’s swift declaration that the case was closed—issued on November 23, the day after the assassination—signaled an institutional drive to foreclose further inquiry. The FBI’s urgency to stamp the file “closed” is understandable only if the Bureau either had something to hide or viewed any prolonged investigation as a threat to its reputation.

Beyond these specific acts, the broader context is damning. The CIA’s Inspector General had already concluded that once covert operations became public, “the Agency should have informed higher authority that it was no longer operating within its charter.” The Kennedy assassination, which immediately prompted questions about Cuba, the Soviet Union, and the agency’s own activities, was precisely the kind of crisis that should have triggered a full, transparent accounting. It did not. Instead, the CIA and FBI fed the Warren Commission a carefully curated record, while the real files—on Oswald’s trip to Mexico City, on the AMLASH plot against Castro, on the DRE’s funding—remained hidden for decades. The ARRB’s chairman, Judge John Tunheim, later testified that the CIA misled the Board itself, providing what looked like innocuous personnel files rather than the operational records sought.

What is missing, and what prevents this reading from becoming an established finding, is any direct evidence that the concealment was part of a conspiracy to kill the President, as opposed to an after‑the‑fact effort by embarrassed bureaucracies to protect themselves. No document has emerged stating that CIA or FBI officials assisted Oswald or knew of a plot in advance. The obstruction could have been reactive and self‑serving rather than conspiratorial. Nevertheless, the cumulative effect of these actions is that the American people have never received a complete, uncensored account of what their government knew about Lee Harvey Oswald before November 22, 1963. This reading cannot be proven from available public evidence. It also cannot be dismissed.

What the Evidence Best Supports

The evidence best supports the finding that Lee Harvey Oswald, acting from the sixth floor of the Texas School Book Depository, fired the shots that killed President Kennedy and wounded Governor Connally. The forensic record—ballistics, neutron activation analysis, fingerprint evidence, and wound trajectories—all points to Oswald as the shooter. The available record also supports the conclusion that the CIA and FBI, having possessed prior knowledge of Oswald’s contacts with anti‑Castro exiles and his movements, deliberately withheld that information from the Warren Commission, misled both official inquiries, and obstructed document release for decades. The case is therefore one of institutional cover‑up, not a proven assassination conspiracy. Whether Oswald had accomplices or whether the agencies knew of a specific threat remains unknown, not because the evidence points one way, but because the agencies made sure the evidence would never accumulate.

SECTION 4 — WHAT REMAINS UNKNOWN

The following questions cannot be answered from the public record:

• Whether Oswald had any helper, handler, or co‑conspirator, from any quarter.
• The full extent of the CIA’s and FBI’s knowledge of Oswald before the assassination, and what, if anything, they did with that knowledge.
• The truth of the acoustic evidence for a second shooter; the scientific consensus is now strongly against it, leaving a vacuum that no other forensic discipline has filled.
• The reason Jack Ruby was able to enter the police basement and kill Oswald, and whether anyone facilitated his access.
• What Oswald said during his unrecorded interrogations that might have shed light on his motives or associations.
• The identities of any other individuals, beyond those already named in unproven allegations, who may have had foreknowledge or involvement.

SECTION 5 — METHODOLOGICAL NOTE

This case is exceptionally difficult to assess with confidence because the very agencies that possessed the most relevant information—the CIA and FBI—were also the entities that controlled access to that information for more than half a century. Even after six decades of declassification, the record is marked by deliberate concealment, destroyed files, and false testimony. The official investigations were built on evidence that the agencies chose to supply, and the independent reviews that followed repeatedly found that the supply had been incomplete. The central tension is not a lack of evidence against Oswald, but a deep, justified suspicion that the record has been shaped to hide how much the government knew and when. The result is a case in which the honest answer to the question of conspiracy is not “yes” or “no,” but “the agencies responsible for finding the truth have made it impossible to know.”