The 9/11 Investigations: Corrections, Conflicts, and Unresolved Evidence

EXPLORE THE RECORD · PATHWAY 3 OF 7

The 9/11 Commission produced the most influential public account of the September 11 attacks. But the Final Report was only one layer of a larger record: family campaigns, hearings, staff statements, interviews, agency files, memoranda for the record, inspector-general investigations, declassification releases and later archival recovery all shaped what the public can examine.

This Pathway asks how the investigation was formed, how the Commission corrected a major official timeline, and how it treated other conflicts, blocked investigations and missing records that remained in the public record.

Mindy Kleinberg testified on March 31, 2003 during the Commission’s first public hearing. Kleinberg, whose husband Alan was killed at the World Trade Center, challenged the idea that the failures preceding September 11 could be explained as the attackers repeatedly getting “lucky”.

Watch from 4:28 — When repeated failures can no longer be called “luck”(04:28 - 07:51)


START HERE

Three Ways Into the Evidence

Start with the part of the investigation you most want to understand.

  • Commission — National Commission on Terrorist Attacks Upon the United States; the independent commission created in late 2002.
  • MFR — Memorandum for the Record; staff summaries of Commission interviews and meetings.
  • OIG — Office of Inspector General; internal watchdog offices that conducted separate agency reviews.
  • Joint Inquiry — the 2002 congressional investigation by the House and Senate intelligence committees.


FORMATION

Who Shaped the Investigation?

Follow the families who forced the issue, the commissioners and staff who organized the inquiry, and the report architecture that began taking shape before evidence collection was complete.

A large group of people, including 9/11 Family Members, sit closely together in an auditorium, listening attentively to a speaker.


CORRECTION

When the Official Story Changed

See how recordings, radar data, logs and interviews led the Commission to replace important parts of the earlier NORAD chronology in public.
 
 
Four people stand and raise their right hands during a hearing, with a text overlay discussing a staff statement on homeland defense, the impact of recordings on the event chronology, and when the official story changed.


UNRESOLVED

What the Final Report Did Not Resolve

Compare false or contradictory testimony, blocked investigations and missing records that the public record shows were handled differently.

Two men in suits, identified as George Tenet and Tim Roemer, speak across from each other at a hearing, with one gesturing and the other listening. The C-SPAN logo is visible.

Five Key Moments: From Pressure to Final Report

The 9/11 Commission did not begin as an automatic government response. Families pressed for an independent investigation, challenged its scope and access, and continued asking questions throughout the public hearings. These five moments orient the reader before the deeper
evidence.

Late 2002

Families force the investigation question into national politics.

Early 2003

Commission leadership, staff, teams and prospective report architecture take shape.

2003–2004

Hearings, interviews and records create an evidentiary corpus larger than the Final Report.

June 17, 2004

Staff Statement No. 17 publicly replaces important portions of the earlier NORAD chronology.

July 22, 2004 and after

The Final Report becomes the dominant public narrative while IG findings, MFRs, declassification and recovered records keep enlarging the public record.


FROM PRESSURE TO FINAL REPORT

From Family Pressure to a National Commission

The Commission was not the government’s first response to September 11. Congressional committees and federal agencies had already opened inquiries. Family members of the victims nevertheless pressed for an independent national commission with public hearings, broader access and public accountability.

Henry Kissinger was initially selected as chair. Questions about conflicts and disclosure of his consulting clients followed immediately, and he resigned on December 13, 2002. Thomas Kean was named chair three days later. No victim-family member sat among the Commission’s final ten commissioners.

The families therefore had to do more than win agreement that an independent commission should exist. They continued pressing over its leadership, access, questions and accountability after it was created.

THE PEARL

The families had to fight twice: first to create an independent commission, then over who would be trusted to run it.

“Statement on the Resignation of Henry Kissinger as Chairman of the National Commission on Terrorist Attacks Upon the United States,” December 13, 2002.

Statement on the resignation of Henry Kissinger as Chairman of the 9/11 Commission, dated December 13, 2002, detailing his decision and the administration’s response.

Who Shaped the Report?

Philip Zelikow became the Commission’s executive director in January 2003. He had previously served in national-security and foreign-policy roles in earlier administrations and returned to government service under George W. Bush. His appointment drew objections from 9/11 family members, some of whom later called for his removal from the Commission, arguing that his prior national-security work and connections to the administrations whose actions the Commission was examining created a conflict.

At the same time, Zelikow and historian Ernest May were establishing the structure of the Commission’s eventual report. Ernest May later described how he and Zelikow developed an outline for a sixteen-chapter Final Report. By mid-March 2003—while the investigation was still in its opening months—the outline already contained chapter headings, subheadings and sub-subheadings. May wrote that the Commission’s staff teams were subsequently organized roughly around the subjects in that outline.

9/11 Families Called For Zelikow’s Resignation

Ernest R. May — “When Government Writes History: The 9-11 Commission Report”
Originally published in The New Republic, May 22, 2005.

A highlighted book excerpt discusses drafting a commission outline, approval by members, and concerns about premature debate leading to partisan conflict.
THE PEARL

The families challenged the independence of the Commission’s executive director while that same executive director was helping establish, at the beginning of the investigation, the structure through which the Commission’s evidence would ultimately be organized and presented.

The Commission Personnel Record

The names listed in the Final Report are not a complete history of everyone who worked for, advised or was considered for the Commission.

Earlier Commission rosters and personnel records identify staff members, consultants, detailees and proposed personnel who do not appear in the Final Report credits. Tracking those records over time produces a broader picture of who participated in the investigation and how the staff changed while the work was underway.

The Commission was not a fixed body. Its personnel, team assignments and advisory relationships evolved during the investigation.

118
Person / position records identified
108
Named individuals
89
Confirmed service
41
Source records reviewed
THE PEARL

The Final Report credits are a snapshot of the Commission at publication. They are not a complete record of everyone who helped conduct or shape the investigation.

What Formal Notification Actually Looked Like

The Commission reconstructed the air-defense timeline from contemporaneous communications rather than later recollections alone. For American 11, it identified a specific call at 8:37:52 a.m. as the first notification received by the military that the aircraft had been hijacked.


CORRECTION

When the Official Story Changed

Earlier public accounts gave NORAD significantly more advance warning of American 77 and United 93 than the recordings later supported. Commission staff returned to contemporaneous FAA and military recordings, radar data, logs, chat records and interviews.

At the June 17, 2004 hearing, Staff Statement No. 17 explicitly rejected key parts of the earlier chronology. It stated that the earlier 9:16 notification claim for United 93 and the 9:24 notification claim for American 77 were incorrect, and it reconstructed the Langley scramble from the contemporaneous record.

THE PEARL

The Commission showed that an official account could be tested against contemporaneous records and publicly corrected when those records did not support it.

When the Commission Reconstructed the Air-Defense Timeline

Conflicting Accounts: The Commission Corrects the NORAD Timeline
9/11 Commission · June 17, 2004

Staff Statement No. 17 — “Conflicting Accounts”

Excerpt from testimony about NORAD’s response to hijack notifications on September 11, 2001, discussing timing errors and confusion over when United 93 was reported hijacked. Staff Statement No. 17, “Improvising a Homeland Defense” · June 17, 2004

Four people stand and raise their right hands during a hearing, with a text overlay discussing a staff statement on homeland defense, the impact of recordings on the event chronology, and when the official story changed.
Military Response on 9/11 — June 17, 2004
Gen. Richard Myers, Adm. Charles Leidig, Gen. Ralph Eberhart and Maj. Gen. Larry Arnold appearing before the 9/11 Commission. Photo: Kyle Hence.

Beverly Eckert Responds to the Air-Defense Hearing

Beverly Eckert, whose husband Sean Rooney was killed in the South Tower, spoke after the Commission’s June 17, 2004 air-defense hearing about what the families were seeking from the investigation: accountability, answers and a public record that addressed their questions.

Her remarks place the hearing in its larger context. For the families who fought to create the Commission, correcting the chronology was not the end of the inquiry. The question was whether the Commission would follow those corrections through to responsibility and accountability.

What This Establishes

  • The Commission’s 2004 reconstruction rejected important parts of the air-defense chronology NORAD had previously presented publicly.
  • The corrected account was based on contemporaneous FAA and military recordings, logs, radar data and other records.
  • The earlier account had overstated the amount of warning available to the military for American 77 and United 93.
  • The correction became part of the Commission’s public record only after the investigation returned to the underlying operational evidence.

What Remains Unresolved

  • Why the inaccurate chronology was presented publicly and repeated for so long.
  • How the incorrect account survived internal review before the Commission reconstructed it.
  • Whether responsibility for those inaccurate public accounts was ever fully established.
  • How the corrected chronology should be reconciled with other unresolved command-and-authority evidence examined elsewhere in the site.

Formal NEADS Notification Is Not the Same as Broader Military Awareness

The recordings answer a specific question with unusual precision: when NEADS received particular reports. They do not reduce the entire FAA–military information system to those calls.

FAA officials also described military participation in FAA communication channels before some formal NORAD notifications. The record therefore requires three separate questions: when NEADS was formally notified, when other military participants became aware of a problem, and when aircraft-specific information became actionable for air defenders.

THE PEARL

The recordings overturned key claims about when NEADS was formally notified. They do not establish the first moment that every military participant became aware of each troubled aircraft.

FORMAL NEADS NOTIFICATION

When the air-defense sector received a report about a particular aircraft.

BROADER MILITARY AWARENESS

What military personnel elsewhere in FAA–DOD channels may have heard or known.

ACTIONABLE INFORMATION

Whether information was specific and timely enough to identify, locate or intercept an aircraft.

When Investigators Were Blocked or Denied the Dots

“Failure to connect the dots” can make the pre-9/11 record sound as though consequential information was simply scattered among inattentive agencies. In several documented cases, people inside the system were trying to pass, obtain or act on important information and encountered restrictions, resistance or compartmentation.

THE PEARL

The failure to “connect the dots” looks different when people inside the system were trying to pass, receive or act on the dots and were stopped, delayed, restricted or never given the information.

Intelligence Dissemination Blocked

Miller / Rossini / Alec Station

In January 2000, an FBI detailee assigned to the CIA’s Bin Laden Unit began drafting a Central Intelligence Report (CIR) addressed to FBI Headquarters and the FBI’s New York Field Office. The draft included Khalid al-Mihdhar’s U.S. visa information and his stated destination of New York.

Later that day, a CIA desk officer added a note directing that the CIR be held “for now” at the direction of the CIA Deputy Chief of the Bin Laden Unit. CIA records showed that the report had still not been disseminated eight days later and remained unsent in draft form by mid-February.

DOJ OIG found that the CIR was not released by the CIA and that a Deputy Chief of the Bin Laden Unit directed that it be placed on hold.

DOJ OIG — The Mihdhar CIR

Chapter Five: Two September 11 Hijackers: Khalid Al-Mihdhar and Nawaf Al-Hazmi

Screenshot of a document detailing communication between the CIA and FBI regarding Mihdhar’s U.S. visa information, with names, dates, and procedural notes highlighted in the text.
DOJ Office of the Inspector General · Special Report · November 2004, released publicly June 2005

Investigators Deprived of Intelligence

Bongardt / Soufan / O’Neill chain

FBI investigators working the Cole/al-Qaeda network repeatedly sought intelligence connected to the Malaysia meeting. In August 2001, criminal investigators were also restricted from participating in the search for Mihdhar and Hazmi under the pre-9/11 “wall.”

Attorney General John Ashcroft told the Commission that the pre-9/11 “wall” separating intelligence and criminal investigations had impeded the FBI’s ability to act on terrorism information. In this testimony, he specifically points to the Moussaoui investigation and the search for Khalid al-Mihdhar and Nawaf al-Hazmi.

9/11 Commission Public Hearing · April 13, 2004

Gorton Challenges Ashcroft on the Pre-9/11 “Wall”

Why Was the Wall Still in Place?

9/11 Commission Public Hearing · April 13, 2004

Field Investigation Resisted

Minneapolis agents believed Moussaoui might be preparing for an aviation-terrorism attack and pressed Headquarters for authority to search his belongings. The FISA request never reached the FISA Court before 9/11. DOJ OIG rejected Rowley’s allegation of deliberate sabotage but found serious problems in the handling of the case.

Screenshot of a report section titled “No intentional misconduct,” detailing analysis findings on a FISA investigation and the actions of Minneapolis FBI employees.

Screenshot of a document section titled “IV. Conclusion,” discussing the investigation of FBI protocols in the Moussaoui case and the performance of individuals involved.

Terror-finance Investigation Constrained

Robert Wright / Operation Vulgar Betrayal

Chicago FBI Special Agent Robert Wright publicly accused FBI management of obstructing terrorism-finance investigations he had pursued before 9/11. Wright said his work had identified terrorist-financing networks and alleged that superiors restricted efforts to investigate and prosecute them. The FBI acknowledged Operation Vulgar Betrayal but disputed that it had uncovered a connection to the 9/11 hijackers or attacks.

Among the investigators affected by these restrictions were New York FBI agents working the Cole investigation, including Steve Bongardt, and agents such as Ali Soufan who were pursuing the broader al-Qaeda/Cole network. Former New York FBI counterterrorism chief John O’Neill had spent years pursuing that same network. The dispute was not simply over whether information existed; it was over whether investigators already working the relevant cases could receive and act on it.

Chapter 7   ⋅ 20:57 Robert Wright begins his statement
Chapter 8   ⋅ 22:02 — Operation Vulgar Betrayal
Chapter 9   ⋅ 23:28 — Wright alleges FBI obstruction
Chapter 10 ⋅ 34:59 — What Wright believed the record showed

At the same May 2002 press conference, Wright’s attorney Larry Klayman said that after 9/11 he had contacted Attorney General John Ashcroft’s office to offer Wright’s assistance and alleged that Criminal Division chief Michael Chertoff rejected the approach. The allegation is part of the contemporaneous record of the press conference; it should not be treated as independently established by Wright’s testimony alone.

Seven years later: Wright’s fight over the FBI’s restrictions on his manuscript and other writings was still in federal court. In May 2009, U.S. District Judge Gladys Kessler issued a 41-page opinion largely rejecting the FBI’s remaining efforts to censor the material. The litigation record also confirmed that Operation Vulgar Betrayal had been shut down in 1999 and formally closed in August 2000.
THE PEARL

The record does not show investigators simply failing to notice warning signs. In several documented cases, people inside the system were already trying to pass, obtain, or act on consequential information and encountered identifiable restrictions, resistance, or institutional barriers.

THE LIMIT

These cases do not establish that every restriction arose from one coordinated plan or common motive. The barriers occurred in different offices, under different authorities, and must be judged case by case. What the record does establish is that “failure to connect the dots” is incomplete when some investigators were actively trying to connect them and were prevented, delayed, or constrained from doing so.

COG: The Commission Defined Its Own Investigative Boundary

The Commission recorded that at 9:59 a White House Military Office officer joined the Air Threat Conference and said the White House requested implementation of continuity-of-government measures, fighter escorts for Air Force One and a combat air patrol over Washington.

The Final Report later stated that continuity plans and leadership evacuations had been implemented. But Chapter 10, note 9 expressly says the Commission did not investigate continuity of constitutional government or continuity of operations except as needed to understand the activities and communications of key officials. The chair, vice chair and senior staff received a briefing on the plans’ general nature and implementation.

Text excerpt detailing NORAD’s response on 9/11, including government continuity plans and fighter escorts for Air Force One and Washington, D.C.
Section from a book notes page discusses the U.S. government’s continuity plans during the 9/11 crisis and mentions the investigation’s limited scope on this topic.
THE PEARL

The Commission confirmed that continuity measures were requested and implemented on September 11 while expressly limiting its own investigation of the continuity system.

THE LIMIT

That investigative boundary does not establish that COG concealed or caused any particular action on September 11. It establishes that an important part of the government's emergency response was only partially examined by the Commission.

Mineta — Sworn Testimony Not Reconciled

Norman Mineta’s sworn testimony placed Vice President Cheney in the PEOC before the Pentagon was struck. The Commission Report adopted an approximately 9:58 PEOC chronology without explaining how Mineta’s account fit within it.

THE PEARL

Mineta gave sworn testimony that conflicts with the Final Report's chronology for Cheney's arrival in the PEOC, and the Final Report did not reconcile that testimony.

THE LIMIT

Mineta did not claim to know what Cheney's reported order meant. The unresolved issue here is the chronology and the Commission's treatment of the conflicting testimony.

George Tenet — The Final Report Contradicted His Public Testimony

Six days before George Tenet testified, Commissioner Richard Ben-Veniste questioned Condoleezza Rice about what President Bush did after receiving the August 6 PDB. Rice publicly identified its title and, when asked whether Bush met with the FBI director between August 6 and September 11, said she was not certain and would have to get back to the Commission.

On April 14, Commissioner Timothy Roemer asked Tenet when he had seen President Bush during August. Tenet answered that he did not believe he had. The Commission’s Final Report later stated that Tenet visited Bush in Crawford, Texas, on August 17 and participated in PDB briefings after Bush returned to Washington.

THE PEARL

Tenet told the Commission he did not believe he had seen President Bush during August. The Commission’s own Final Report later placed him with Bush at Crawford on August 17. His public testimony was false.

Excerpt states DCI Tenet visited President Bush in Texas in August 2001, attended briefings, but recalls no discussion of domestic threats during this time.

Were the World Trade Center Aircraft Recorders Recovered?

The Commission stated that the cockpit voice and flight data recorders from American 11 and United 175 were not found. Nicholas DeMasi published a conflicting Ground Zero account a year before the Final Report, and Mike Bellone later described a federal search and a recorder-like object in a 2004 interview. A separate September 18 emergency-management memorandum recorded a possible signal lead.

THE PEARL

The World Trade Center recorder conflict is documented. Recovery of the recorders is not publicly authenticated.

Public authentication would require records such as device identification, evidence receipts, laboratory records or a chain of custody. Those records have not been produced in the public evidence assembled here.

Text highlights that the CVRs and FDRs from American 11 and United 175 were not found; the CVR from American 77 was badly burned and unrecoverable.

At the time of the disaster, Nicholas DeMasi was a firefighter at Engine Company 261 in Queens. In “Behind-the-Scenes,” he describes his experience as follows:

“At one point I was assigned to take Federal Agents around the site to search for the black boxes from the planes… We loaded up about a million dollars worth of equipment and strapped it into the ATV… There were a total of four black boxes. We found three.”


Mike Bellone told William Bunch that he assisted DeMasi and federal agents during the search and saw a reddish-orange object with white stripes in the back of the ATV that he believed resembled an aircraft flight recorder.

Bellone’s description is a firsthand visual account, not a technical identification. No public serial number, evidence receipt or custody record connects the object he described to either aircraft.


September 18 signal lead: Edward F. Jacoby Jr., New York State Emergency Management Office — Sept. 18, 2001 memo to Gov. George Pataki, OEM FOIL Sec. 4, p. 16, reported that investigators had identified a signal believed to be from one of the WTC aircraft recorders. Later reporting did not confirm that the signal came from a recorder.

 A letter from NY State Emergency Management Office discusses 9/11 response efforts, including identifying a black box signal

OEM, Government Records and Barry Jennings

World Trade Center 7 belongs in this Pathway for reasons separate from the engineering debate. New York City’s Office of Emergency Management maintained its Emergency Operations Center there. The SEC Northeast Regional Office and the U.S. Secret Service New York Field Office were also located in the building.

The SEC reported that it recovered electronically stored material and reviewed its active cases, while records relating to open examinations had to be reconstructed from registrants and other sources. GAO Decision B-300677 separately documents the physical loss of $22,646.20 from the Secret Service New York Field Office’s confidential fund in a locked safe on the 9th floor of WTC 7.

THE PEARL

The destruction of WTC 7 disrupted New York’s emergency-management center and caused documented government-record and operational losses. The Final Report did not present a public inventory of those losses or visibly reconcile every significant firsthand account from inside the building.

THE QUESTION

What records were lost, what had to be reconstructed, what could not be reconstructed, and how did the Commission determine whether those losses affected subjects within its mandate?

OEM EMERGENCY OPERATIONS CENTER — 7 WTC

The Commission’s May 18, 2004 emergency-response hearing established that New York City’s Office of Emergency Management operated its Emergency Operations Center from 7 World Trade Center and activated it after the North Tower was struck.

Richard Sheirer testified that the EOC was then evacuated after officials received reports of another possible incoming aircraft. He also said the rest of 7 WTC had been evacuated earlier.

Excerpt from a document describing the evacuation of the EOC and 7 World Trade Center due to the report of a possible third plane.

Source:
May 18, 2004 — 9/11 Commission Emergency Response Hearing →

SEC NORTHEAST REGIONAL OFFICE — RECORDS RECONSTRUCTED

The SEC’s Northeast Regional Office was destroyed in the World Trade Center complex. On September 26, 2001, SEC Chairman Harvey Pitt told Congress that electronically stored records had been recovered and that the agency expected not to lose any significant investigation or case.
 

Text excerpt discussing examination records, staff allocation from various offices, and collaboration with organizations like NYSE and NASDR to maintain examination oversight and cycle fulfillment.

Source:
September 26, 2001 — Harvey Pitt testimony →

SECRET SERVICE NEW YORK FIELD OFFICE — 9TH FLOOR

GAO records show that the Secret Service’s New York Field Office was located on the 9th floor of 7 World Trade Center. A locked safe there contained $22,646.20 in confidential funds, which was physically lost when the building was destroyed.

Document titled “United States Secret Service Relief of Accountable Officer for Funds Lost in the Destruction of the World Trade Center,” dated June 19, 2003, addressed to Ms. Margie Gallahan.

Source:
June 19, 2003 — GAO B-300677 →

Barry Jennings — A Firsthand Account From Inside WTC 7

Barry Jennings, a New York City emergency official, described being inside 7 World Trade Center on the morning of September 11 and his experience attempting to leave the building. His interview provides firsthand witness evidence about conditions inside WTC 7. It does not, by itself, establish why the building collapsed.

When the Investigative Record Is Larger Than the Final Report

The cases examined in this Pathway were handled in different ways. The Commission publicly corrected major elements of the NORAD chronology after returning to contemporaneous records. Other conflicts remained unreconciled in the Final Report. Separate inspector-general investigations documented restrictions and failures not fully visible in the Commission’s narrative. Continuity-of-government measures were acknowledged while the Commission expressly limited its inquiry into that system. Later records and archival releases have continued to enlarge the evidence available for examination.

Those differences matter because the Final Report is not the same thing as the complete investigative record. Understanding the investigation requires reading the hearings, staff statements, interview records, inspector-general findings, court records and later releases alongside the Report itself.

THE PEARL

The Final Report remains an essential part of the historical record. It is not coextensive with the record the investigation produced—or with the evidence that became public afterward.