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Keyword and entity retrieval over indexed evidence, hypotheses, and claims. Nothing is answered from model memory on this page. For a scored percentage with the working shown, open Fact or Fiction.
Topic remit
Day of
Engineering
Facilitation
Intelligence & process
Foreknowledge
Independent cluster
Entities
- Omar al-Bayoumi
- Nawaf al-Hazmi
- Fahad al-Thumairy
- Anwar al-Awlaki
- Mohdar Abdullah
- Prince Bandar bin Sultan
- Abdussattar Shaikh
- Khalid Sheikh Mohammed
- Ali Abdul Aziz Ali
- Osama Bassnan
- Holly Ratchford
- Norman Mineta
- Dick Cheney
- Anthony Shaffer
- Kenneth Williams
- Zacarias Moussaoui
- Barry Jennings
- Michael Hess
- Jane Standley
- Sivaraj Shyam-Sunder
- David Chandler
- Ted Walter
- Tony Szamboti
- Piers Robinson
- Philip Zelikow
- Søren Roest Korsgaard
- Peter Dale Scott
- Paul Zarembka
- Barbara Elias-Sanborn
- Michael F. Scheuer
- Sajit Gandhi
Matching hypotheses
- H007Saudi-linked individuals knowingly facilitated Nawaf al-Hazmi and Khalid al-MihdharScore
- H003Aircraft impact and subsequent fire initiated WTC1 collapseScore
- H015Able Danger identified Atta's cell before 9/11 and was blocked from warning the FBIScore
- H020Specific pre-attack warnings (Odigo and similar) show that some non-plot actors knew the morning's targetingScore
Matching claims
- verifiedCLM-001
Omar al-Bayoumi provided housing and banking assistance to Nawaf al-Hazmi and Khalid al-Mihdhar in San Diego in February 2000.
- partially_supportedCLM-003
Omar al-Bayoumi was a paid cooptee of Saudi GIP reporting via Ambassador Bandar.
- verifiedCLM-007
U.S. agencies had actionable information on Mihdhar's U.S. visa in January 2000 and failed to watchlist him until August 2001.
- verifiedCLM-011
American Airlines Flight 11 struck World Trade Center 1 at 08:46:40 on 11 September 2001.
- verifiedCLM-012
United Airlines Flight 175 struck World Trade Center 2 at 09:03:11.
- disputedCLM-013
Aircraft impact and the ensuing fires initiated the collapses of WTC 1 and WTC 2 without additional energetic devices.
- disputedCLM-020
Able Danger identified Mohamed Atta's cell before 11 September and was blocked from notifying the FBI.
- partially_supportedCLM-026
NORAD/FAA war-games and false timelines indicate the air-defence failure was more than accident.
- disputedCLM-030
WTC 7's entire measurable north and west rooflines instantaneously transitioned to free fall, a behaviour NIST's Stage 1 description conceals.
- disputedCLM-035
A small CIA Alec Station group intentionally withheld Mihdhar/Hazmi information from the FBI, and the purpose became to allow the attacks.
- verifiedCLM-037
A large born-digital public archive of 11 September emails, stories, and images exists and was acquired by the Library of Congress in 2003.
- verifiedCLM-040
NTSB produced flight-path studies and ATC transcripts for the four hijacked flights and initially refused a public docket.
Evidence supporting
64Flight 93: white jet / C-130 and shoot-down rumours
NTSB flight-path studies, Air Traffic Control tapes, and CVR/FDR summaries (AA11, UA175, AA77, UA93) · 2001-09-11
Other aircraft were near UA93 at the end, and wreckage was distributed along a path, not a single postage-stamp hole only.
CIT / no-Boeing-at-Pentagon claim
Citizen Investigation Team / Pentagon no-Boeing claims · 2009-01-01
A set of independent researchers published a no-Boeing account of the Pentagon event, citing selected witnesses and façade photos.
Piers Robinson — Researching 9/11 and Beyond: Current Knowledge and Future Directions (Aug 2024)
Journal of 9/11 Studies · 2024-08-01
Robinson's 2024 survey cites Harrit 2009, Hulsey 2020, MacQueen eyewitness counts, NIST NCSTAR, the Commission, Ashton v KSA, and a 2023 Klarenberg claim of a CIA-Saudi recruiting operation involving two hijackers. He states official investigations are flawed and demolition of WTC 1/2/7 is most likely.
CIA 9/11 File posting — 100+ FOIA documents, 19 June 2012
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2012-06-19
In 2012 the National Security Archive posted 100+ CIA documents cited in Commission footnotes, and stated that this was about one-quarter of the CIA material the Commission cited, with KSM interrogation reports still withheld.
Barbara Honegger — Evidence of explosives at the Pentagon (Toronto Report ch.13)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Honegger compiles Pentagon witnesses who used bomb/cordite language, cites stopped clocks around 9:31–9:32, and treats the FBI code name PENTTBOM as evidence of a bombing investigation.
David Ray Griffin — Anomalies in official accounts of AA77 and UA93 (Toronto Report ch.7)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Griffin's 2012 chapter lists named process contradictions on AA77 notification and UA93 notification, plus Pentagon-object and UA93-shoot-down arguments with named witnesses and an FAA memo.
Evidence contradicting
12UA93 ACARS 09:23 and 09:28 mayday — NSAEBB 196 quotation
NTSB flight-path studies and ATC transcripts released via NSArchive (NSAEBB 196) · 2001-09-11
NTSB ACARS/ATC text quoted by NSArchive: UA93 received a 09:23 warning about cockpit intrusion and the NY impacts, then at 09:28 transmitted a mayday / 'hey get out of here' as it was hijacked.
NTSB flight-path study: AA77 from Dulles to the Pentagon
NTSB flight-path studies, Air Traffic Control tapes, and CVR/FDR summaries (AA11, UA175, AA77, UA93) · 2002-02-19
NTSB reconstructed a continuous radar/path track of AA77 from takeoff to the Pentagon.
Legge & Stutt — AA77 FDR analysis supports official Pentagon flight path (Jan 2011)
Journal of 9/11 Studies · 2011-01-01
A 2011 Journal of 9/11 Studies FDR analysis concludes the official AA77 path to Pentagon impact is supported.
Commission: UA93 crashed near Shanksville at 10:03:11 after a passenger revolt
9/11 Commission Report · 2004-07-22
UA93 impacted a field in Somerset County, Pennsylvania, at 10:03:11. Official transcription of the CVR describes a passenger counterattack.
John D. Wyndham — Problems with theories alternative to large-plane impact at the Pentagon (Nov 2011)
Journal of 9/11 Studies · 2011-11-01
The Journal of 9/11 Studies published a 2011 paper arguing that theories alternative to a large-plane Pentagon impact have problems.
ASCE Pentagon building performance: 757-class impact damage
ASCE/SEI Pentagon Building Performance Report (2003) · 2003-01-01
An engineering team mapped interior damage consistent with a large-aircraft mass trajectory through the Pentagon.
Ambiguous
76NTSB path studies and ATC transcripts FOIA'd by NSArchive (Aug 2006)
NTSB flight-path studies and ATC transcripts released via NSArchive (NSAEBB 196) · 2006-08-11
In August 2006 NTSB released to the National Security Archive the four-flight ATC transcripts, three path studies, and the UA93 DFDR specialist report, after refusing to open its own public docket.
Journal of 9/11 Studies — full article catalog (2006–2025)
Journal of 9/11 Studies · 2026-09-02
IC911 hosts a journal catalog of 70+ items. Several flight papers (Wyndham 2011, Legge & Stutt 2011, Salter 2006) argue against no-plane / no-Boeing theories.
September 11th Sourcebooks index (NSArchive volumes I–VII and updates)
National Security Archive — September 11th Sourcebooks · 2026-09-03
The National Security Archive organised a September 11th Sourcebook series of at least seven volumes plus later FOIA postings on Clarke, FAA, and NTSB transcripts.
CIA IG August 2001: CTC practices reviewed positively — vs later OIG/Commission
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2001-08-01
NSArchive records that a CIA Inspector General review completed in August 2001 praised CTC information-management and FBI cooperation, in contrast to the 2004 CIA OIG and the Commission.
IC911 presentations catalogue (2023–2026)
International Center for 9/11 Justice · 2026-09-02
IC911 lists seven presentations 2023–2026 on flight simulation, seismic claims, hijacking, air defence, the North Tower spire, and WTC 7 free fall.
FBI 2017: Bayoumi paid as GIP cooptee via Ambassador Bandar
FBI materials released under Executive Order 14040 · 2017-06-14
An official FBI analytical document asserts Bayoumi was a paid GIP cooptee through Bandar, 1998–2001.
Contemporary reports
68UA93 ACARS 09:23 and 09:28 mayday — NSAEBB 196 quotation
NTSB flight-path studies and ATC transcripts released via NSArchive (NSAEBB 196) · 2001-09-11
NTSB ACARS/ATC text quoted by NSArchive: UA93 received a 09:23 warning about cockpit intrusion and the NY impacts, then at 09:28 transmitted a mayday / 'hey get out of here' as it was hijacked.
Flight 93: white jet / C-130 and shoot-down rumours
NTSB flight-path studies, Air Traffic Control tapes, and CVR/FDR summaries (AA11, UA175, AA77, UA93) · 2001-09-11
Other aircraft were near UA93 at the end, and wreckage was distributed along a path, not a single postage-stamp hole only.
NTSB flight-path study: AA77 from Dulles to the Pentagon
NTSB flight-path studies, Air Traffic Control tapes, and CVR/FDR summaries (AA11, UA175, AA77, UA93) · 2002-02-19
NTSB reconstructed a continuous radar/path track of AA77 from takeoff to the Pentagon.
CIA IG August 2001: CTC practices reviewed positively — vs later OIG/Commission
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2001-08-01
NSArchive records that a CIA Inspector General review completed in August 2001 praised CTC information-management and FBI cooperation, in contrast to the 2004 CIA OIG and the Commission.
CIA email 21 August 2001: 'Re: Khalid Al-Mihdhar'
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2001-08-21
A CIA email dated 21 August 2001 is titled Re: Khalid Al-Mihdhar and is a Commission Chapter 8 citation.
Commission: AA11 struck WTC1 at 08:46:40
9/11 Commission Report · 2004-07-22
A large aircraft identified as AA11 struck WTC 1 at 08:46:40 on 11 September 2001.
Later recollections / analysis
84NTSB path studies and ATC transcripts FOIA'd by NSArchive (Aug 2006)
NTSB flight-path studies and ATC transcripts released via NSArchive (NSAEBB 196) · 2006-08-11
In August 2006 NTSB released to the National Security Archive the four-flight ATC transcripts, three path studies, and the UA93 DFDR specialist report, after refusing to open its own public docket.
Legge & Stutt — AA77 FDR analysis supports official Pentagon flight path (Jan 2011)
Journal of 9/11 Studies · 2011-01-01
A 2011 Journal of 9/11 Studies FDR analysis concludes the official AA77 path to Pentagon impact is supported.
Journal of 9/11 Studies — full article catalog (2006–2025)
Journal of 9/11 Studies · 2026-09-02
IC911 hosts a journal catalog of 70+ items. Several flight papers (Wyndham 2011, Legge & Stutt 2011, Salter 2006) argue against no-plane / no-Boeing theories.
CIT / no-Boeing-at-Pentagon claim
Citizen Investigation Team / Pentagon no-Boeing claims · 2009-01-01
A set of independent researchers published a no-Boeing account of the Pentagon event, citing selected witnesses and façade photos.
September 11th Sourcebooks index (NSArchive volumes I–VII and updates)
National Security Archive — September 11th Sourcebooks · 2026-09-03
The National Security Archive organised a September 11th Sourcebook series of at least seven volumes plus later FOIA postings on Clarke, FAA, and NTSB transcripts.
Piers Robinson — Researching 9/11 and Beyond: Current Knowledge and Future Directions (Aug 2024)
Journal of 9/11 Studies · 2024-08-01
Robinson's 2024 survey cites Harrit 2009, Hulsey 2020, MacQueen eyewitness counts, NIST NCSTAR, the Commission, Ashton v KSA, and a 2023 Klarenberg claim of a CIA-Saudi recruiting operation involving two hijackers. He states official investigations are flawed and demolition of WTC 1/2/7 is most likely.
Official documents
72NTSB path studies and ATC transcripts FOIA'd by NSArchive (Aug 2006)
NTSB flight-path studies and ATC transcripts released via NSArchive (NSAEBB 196) · 2006-08-11
In August 2006 NTSB released to the National Security Archive the four-flight ATC transcripts, three path studies, and the UA93 DFDR specialist report, after refusing to open its own public docket.
UA93 ACARS 09:23 and 09:28 mayday — NSAEBB 196 quotation
NTSB flight-path studies and ATC transcripts released via NSArchive (NSAEBB 196) · 2001-09-11
NTSB ACARS/ATC text quoted by NSArchive: UA93 received a 09:23 warning about cockpit intrusion and the NY impacts, then at 09:28 transmitted a mayday / 'hey get out of here' as it was hijacked.
Flight 93: white jet / C-130 and shoot-down rumours
NTSB flight-path studies, Air Traffic Control tapes, and CVR/FDR summaries (AA11, UA175, AA77, UA93) · 2001-09-11
Other aircraft were near UA93 at the end, and wreckage was distributed along a path, not a single postage-stamp hole only.
NTSB flight-path study: AA77 from Dulles to the Pentagon
NTSB flight-path studies, Air Traffic Control tapes, and CVR/FDR summaries (AA11, UA175, AA77, UA93) · 2002-02-19
NTSB reconstructed a continuous radar/path track of AA77 from takeoff to the Pentagon.
CIA IG August 2001: CTC practices reviewed positively — vs later OIG/Commission
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2001-08-01
NSArchive records that a CIA Inspector General review completed in August 2001 praised CTC information-management and FBI cooperation, in contrast to the 2004 CIA OIG and the Commission.
CIA 9/11 File posting — 100+ FOIA documents, 19 June 2012
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2012-06-19
In 2012 the National Security Archive posted 100+ CIA documents cited in Commission footnotes, and stated that this was about one-quarter of the CIA material the Commission cited, with KSM interrogation reports still withheld.
Independent / media
54Legge & Stutt — AA77 FDR analysis supports official Pentagon flight path (Jan 2011)
Journal of 9/11 Studies · 2011-01-01
A 2011 Journal of 9/11 Studies FDR analysis concludes the official AA77 path to Pentagon impact is supported.
Journal of 9/11 Studies — full article catalog (2006–2025)
Journal of 9/11 Studies · 2026-09-02
IC911 hosts a journal catalog of 70+ items. Several flight papers (Wyndham 2011, Legge & Stutt 2011, Salter 2006) argue against no-plane / no-Boeing theories.
CIT / no-Boeing-at-Pentagon claim
Citizen Investigation Team / Pentagon no-Boeing claims · 2009-01-01
A set of independent researchers published a no-Boeing account of the Pentagon event, citing selected witnesses and façade photos.
Piers Robinson — Researching 9/11 and Beyond: Current Knowledge and Future Directions (Aug 2024)
Journal of 9/11 Studies · 2024-08-01
Robinson's 2024 survey cites Harrit 2009, Hulsey 2020, MacQueen eyewitness counts, NIST NCSTAR, the Commission, Ashton v KSA, and a 2023 Klarenberg claim of a CIA-Saudi recruiting operation involving two hijackers. He states official investigations are flawed and demolition of WTC 1/2/7 is most likely.
IC911 presentations catalogue (2023–2026)
International Center for 9/11 Justice · 2026-09-02
IC911 lists seven presentations 2023–2026 on flight simulation, seismic claims, hijacking, air defence, the North Tower spire, and WTC 7 free fall.
Barbara Honegger — Evidence of explosives at the Pentagon (Toronto Report ch.13)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Honegger compiles Pentagon witnesses who used bomb/cordite language, cites stopped clocks around 9:31–9:32, and treats the FBI code name PENTTBOM as evidence of a bombing investigation.
Unresolved contradictions
- CTR-017WTC 7 Stage 1: NIST gradual vs Chandler instantaneous whole-roofline free fall
- CTR-022NTSB public-docket refusal vs NSArchive FOIA release of the same path/ATC files