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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
- Khalid al-Mihdhar
- Fahad al-Thumairy
- Anwar al-Awlaki
- Mohdar Abdullah
- Caysan Bin Don
- Prince Bandar bin Sultan
- Abdussattar Shaikh
- Khalid Sheikh Mohammed
- Ali Abdul Aziz Ali
- Osama Bassnan
- Hani Hanjour
- Holly Ratchford
- Thomas Kean
- Mohamed Atta
- Ziad Jarrah
- Larry Silverstein
- Norman Mineta
- Dick Cheney
- Anthony Shaffer
- Kenneth Williams
- Coleen Rowley
- Zacarias Moussaoui
- Richard Gage
- Steven E. Jones
- Niels H. Harrit
- J. Leroy Hulsey
- Judy Wood
- Barry Jennings
- Michael Hess
- William Rodriguez
- Jane Standley
- Sivaraj Shyam-Sunder
- John Farmer
- Curt Weldon
- Mahmoud Ahmad
- George W. Bush
- David Ray Griffin
- David Chandler
- Ted Walter
- Tony Szamboti
- Graeme MacQueen
- Kevin R. Ryan
- Piers Robinson
- Natalie Schilling
- Jonathan H. Cole
- Philip Zelikow
- James Gourley
- Søren Roest Korsgaard
- Lorie Van Auken
- Bob McIlvaine
- Peter Dale Scott
- Paul Zarembka
- Barbara Honegger
- Lance deHaven-Smith
- Kristina Claunch
- Mary Marshall Clark
- Peter Bearman
- Barbara Elias-Sanborn
- Richard A. Clarke
- Michael F. Scheuer
- Sajit Gandhi
- Michael Horrocks
- Thomas W. Eagar
- Christopher Musso
Matching hypotheses
- H007Saudi-linked individuals knowingly facilitated Nawaf al-Hazmi and Khalid al-MihdharScore
- H008U.S. agencies possessed actionable pre-attack intelligence on these two operativesScore
- H009Relevant intelligence was withheld from the 9/11 CommissionScore
- H010Bayoumi's assistance was un-tasked hospitality (competing explanation)Score
- H001AA11 struck WTC1Score
- H003Aircraft impact and subsequent fire initiated WTC1 collapseScore
- H004Additional energetic mechanisms contributed to WTC1 collapseScore
- H005WTC7 collapse resulted from fire-induced structural failureScore
- H006Explosives contributed to WTC7 failureScore
- H011NORAD/FAA response failure was more than accident (exercises, false timeline, or interference)Score
- H012Unusual pre-attack put-option activity reflected advance knowledge of the attacksScore
- H013UA93 was shot down rather than crashed solely by a passenger revoltScore
- H014The Pentagon was not struck by AA77 (missile or other object)Score
- H015Able Danger identified Atta's cell before 9/11 and was blocked from warning the FBIScore
- H016Urban Moving Systems detainees had organisational advance knowledge of the attacksScore
- H017Directed energy, not impact/fire/conventional explosives, destroyed the twin towersScore
- H018WTC 7 was 'pulled' — a controlled demolition was ordered that afternoonScore
- H019Published hijacker identities are substantially wrong (some named men were not aboard)Score
- H020Specific pre-attack warnings (Odigo and similar) show that some non-plot actors knew the morning's targetingScore
- H021The 9/11 Commission was structurally prevented from being a truth-seeking enquiryScore
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.
- disputedCLM-002
The 1 February 2000 restaurant meeting was a chance encounter.
- partially_supportedCLM-003
Omar al-Bayoumi was a paid cooptee of Saudi GIP reporting via Ambassador Bandar.
- contradictedCLM-004
Bayoumi did not knowingly assist Islamist extremists.
- contradictedCLM-005
Fahad al-Thumairy provided no assistance to the two operatives.
- partially_supportedCLM-006
Thumairy tasked an associate to help two 'very significant people' on arrival.
- 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.
- indeterminateCLM-008
Bayoumi had advance knowledge that the 9/11 attacks would occur.
- well_supportedCLM-009
The FBI withheld Bayoumi-related intelligence from the 9/11 Commission.
- disputedCLM-010
Bayoumi's assistance was ordinary Muslim hospitality with no tasking.
- 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-014
Unreacted thermitic material was present in WTC dust.
- disputedCLM-015
WTC 7 collapsed from ordinary office fires following debris impact, without explosives.
- disputedCLM-016
Explosives or other additional energetic mechanisms contributed to WTC 7's failure.
- disputedCLM-017
Larry Silverstein ordered WTC 7 pulled in the demolition-slang sense.
- disputedCLM-018
UA93 was shot down by U.S. military rather than crashed by a passenger counterattack.
- contradictedCLM-019
The Pentagon was not struck by AA77.
- disputedCLM-020
Able Danger identified Mohamed Atta's cell before 11 September and was blocked from notifying the FBI.
- indeterminateCLM-021
Unusual pre-attack put-option activity reflected trading by people with advance knowledge of the plot.
- unverifiedCLM-022
The five Urban Moving Systems detainees had advance knowledge of the attacks as an Israeli intelligence team.
- unsupportedCLM-023
The twin towers were destroyed by directed energy, not by impact, fire, or conventional explosives.
- unverifiedCLM-024
Pakistan's ISI chief authorised a pre-attack transfer to Mohamed Atta.
- contradictedCLM-025
Some of the named 19 hijackers were not aboard the aircraft / were still alive.
- 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-031
The 9/11 Commission was not a truth-seeking body; the Report is a 'Zelikow Report' defined by systematic omissions.
- disputedCLM-032
NIST NCSTAR reports on the WTC are false as engineering explanations.
- disputedCLM-033
First-responder explosion-language about the Twin Towers is evidence of demolition charges.
- unverifiedCLM-034
Reported 9/11 aircraft manoeuvres were not flyable manually by the named hijacker-pilots (automation/remote guidance).
- disputedCLM-035
A small CIA Alec Station group intentionally withheld Mihdhar/Hazmi information from the FBI, and the purpose became to allow the attacks.
- disputedCLM-036
The Pentagon attack involved inside-the-building explosives before AA77's official impact.
- 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.
- well_supportedCLM-038
Street-level witnesses in lower Manhattan saw/heard a second aircraft hit the South Tower.
- well_supportedCLM-039
CIA senior products in summer 2001 described Bin Ladin attacks as imminent, including a strike in the US, without time/place/target.
- verifiedCLM-040
NTSB produced flight-path studies and ATC transcripts for the four hijacked flights and initially refused a public docket.
- partially_supportedCLM-041
The U.S. pressed the Taliban to expel bin Laden more than 30 times, with only three approaches in the first Bush year.
- well_supportedCLM-042
About three-quarters of CIA materials cited by the 9/11 Commission, including all KSM interrogation reports, remained withheld as of the 2012 File posting.
Evidence supporting
66Poteshman 2006: unusual put-option volume on airlines before 9/11
Allen M. Poteshman, 'Unusual Option Market Activity and the Terrorist Attacks of September 11, 2001,' Journal of Business 79(4) (2006) · 2006-07-01
A peer-reviewed study found statistically unusual pre-attack put-option activity in airline stocks.
Peter Dale Scott — 9/11 as a deep event: CIA personnel helped allow it (Toronto Report ch.5)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Scott's 2012 chapter restates a documented CIA-to-FBI withholding pattern around Mihdhar and Hazmi (Malaysia 2000, visa, watchlisting) attributed to a small Alec Station group, and adds a Saudi-GID liaison hypothesis plus an 'allowed to proceed' inference.
Able Danger: Shaffer/Weldon say Atta's Brooklyn cell was identified before 9/11
Able Danger hearings and Lt. Col. Anthony Shaffer / Rep. Curt Weldon statements (2005) · 2005-09-21
Able Danger officers testified they had identified Atta before 9/11 and were blocked from notifying the FBI. Commission staff found the claim unsupported.
CIA SEIBs June–August 2001: Bin Ladin attacks 'imminent' / 'in the US'
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2001-08-07
CIA senior briefs from June–August 2001 repeatedly warned of imminent Bin Ladin operations, including a 7 August SEIB titled 'Bin Ladin Determined to Strike in the US', and a 24 August note that an associated individual was considering U.S. operations without timing or targets.
Coleen Rowley: FBI HQ blocked a FISA search of Moussaoui's laptop
Coleen Rowley memo to FBI Director Mueller (May 2002) on the Moussaoui case · 2002-05-21
A flight-school student connected to radical jihadist travel was in FBI custody before 11 September; a requested FISA search was not obtained.
Paul Zarembka — Insider trading before 9/11 re-examined (Toronto Report ch.6)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
A 2012 hearing paper surveys three academic option-market studies and argues the combined pre-attack activity is not plausibly random, while treating UAL/AMR themselves as weak because of hedging.
Evidence contradicting
16Commission staff: Able Danger Atta identification not substantiated
9/11 Commission Report · 2005-08-12
Commission staff published that they could not substantiate a pre-9/11 Able Danger identification of Atta.
Commission/SEC: no evidence anyone with advance knowledge profited in securities
9/11 Commission / SEC review of pre-attack securities trading · 2004-07-22
The Commission published a negative finding on securities profits by people with advance knowledge of the attacks.
Silverstein Properties later: 'pull it' meant withdraw firefighters
PBS — America Rebuilds: A Day with Larry Silverstein (2002) · 2005-01-01
Silverstein's office published a firefighter-withdrawal reading of 'pull it.'
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.
Jonathan Cole — Discussion of Le & Bažant spontaneous-collapse paper (Jul 2023)
Journal of 9/11 Studies · 2023-07-01
An ASCE member published a 2023 discussion challenging Le & Bažant's spontaneous-collapse treatment of the towers.
Ambiguous
81Judge Daniels 2024: not 'just an innocent participant'
In re Terrorist Attacks on September 11, 2001 (S.D.N.Y.) · 2024-08-01
A U.S. district judge in 2024 drew a reasonable-inference finding that Bayoumi's housing help was tasked by the Saudi government.
AA77 hijacked; Hazmi and Mihdhar aboard; Pentagon impact
9/11 Commission Report · 2004-07-22
The two men assisted in San Diego in 2000 were AA77 hijackers on 11 September 2001.
911DA email, 11 September 2001: WTC 'just being gone'
September 11 Digital Archive (RRCHNM / ASHP) · 2001-09-11
A 11 September 2001 email treats the World Trade Center as already gone while the writer listens to coverage.
911DA story: last Windows/observation-deck visit the night of 10 September
September 11 Digital Archive (RRCHNM / ASHP) · 2002-10-22
A October 2002 Digital Archive story claims a visitor party was on the WTC observation deck around 22:00 on 10 September 2001 and was offered rain checks dated 11 September.
Natalie Schilling — Linguistic analysis of AA11 transmissions purported to be Mohamed Atta (Apr 2026)
Natalie Schilling, Linguistic Analysis of AA11 transmissions purported to be Mohamed Atta (April 2026) and addendum (August 2026) · 2026-04-01
A 2026 linguistic report on AA11 audio attributed to Atta was published under IC911 Reports, authored by Natalie Schilling, Ph.D.
Columbia 9/11 Oral History Project — holdings statement
Columbia Center for Oral History Research — September 11 Oral History Project · 2026-09-03
Columbia's 9/11 oral-history project reports five programmes, over 900 hours with over 600 people, 351 of them open, plus a 2011 book. Transcripts were not ingested.
Contemporary reports
76CIA SEIBs June–August 2001: Bin Ladin attacks 'imminent' / 'in the US'
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2001-08-07
CIA senior briefs from June–August 2001 repeatedly warned of imminent Bin Ladin operations, including a 7 August SEIB titled 'Bin Ladin Determined to Strike in the US', and a 24 August note that an associated individual was considering U.S. operations without timing or targets.
Coleen Rowley: FBI HQ blocked a FISA search of Moussaoui's laptop
Coleen Rowley memo to FBI Director Mueller (May 2002) on the Moussaoui case · 2002-05-21
A flight-school student connected to radical jihadist travel was in FBI custody before 11 September; a requested FISA search was not obtained.
Urban Moving Systems five employees detained after being reported celebrating / filming
FBI files on Urban Moving Systems and five Israeli nationals detained 11 September 2001 · 2001-09-11
Five Urban Moving Systems employees were detained after witness reports they filmed and appeared to celebrate the attacks; they were later deported without terrorism charges.
Phoenix memo, 10 July 2001: bin Laden students at U.S. aviation schools
FBI Phoenix Electronic Communication, 10 July 2001 (Kenneth Williams) · 2001-07-10
An FBI agent documented a bin Laden–flight-school hypothesis in July 2001 that was not actioned nationally before the attacks.
AA77 hijacked; Hazmi and Mihdhar aboard; Pentagon impact
9/11 Commission Report · 2004-07-22
The two men assisted in San Diego in 2000 were AA77 hijackers on 11 September 2001.
PDB 6 August 2001: Bin Ladin Determined To Strike in US
President's Daily Brief, 6 August 2001 — 'Bin Ladin Determined To Strike in US' · 2001-08-06
The President received a 6 August 2001 brief stating Bin Ladin was determined to strike in the United States, including hijacking-related patterns.
Later recollections / analysis
87Judge Daniels 2024: not 'just an innocent participant'
In re Terrorist Attacks on September 11, 2001 (S.D.N.Y.) · 2024-08-01
A U.S. district judge in 2024 drew a reasonable-inference finding that Bayoumi's housing help was tasked by the Saudi government.
Poteshman 2006: unusual put-option volume on airlines before 9/11
Allen M. Poteshman, 'Unusual Option Market Activity and the Terrorist Attacks of September 11, 2001,' Journal of Business 79(4) (2006) · 2006-07-01
A peer-reviewed study found statistically unusual pre-attack put-option activity in airline stocks.
Peter Dale Scott — 9/11 as a deep event: CIA personnel helped allow it (Toronto Report ch.5)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Scott's 2012 chapter restates a documented CIA-to-FBI withholding pattern around Mihdhar and Hazmi (Malaysia 2000, visa, watchlisting) attributed to a small Alec Station group, and adds a Saudi-GID liaison hypothesis plus an 'allowed to proceed' inference.
Able Danger: Shaffer/Weldon say Atta's Brooklyn cell was identified before 9/11
Able Danger hearings and Lt. Col. Anthony Shaffer / Rep. Curt Weldon statements (2005) · 2005-09-21
Able Danger officers testified they had identified Atta before 9/11 and were blocked from notifying the FBI. Commission staff found the claim unsupported.
Paul Zarembka — Insider trading before 9/11 re-examined (Toronto Report ch.6)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
A 2012 hearing paper surveys three academic option-market studies and argues the combined pre-attack activity is not plausibly random, while treating UAL/AMR themselves as weak because of hedging.
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.
Official documents
80Able Danger: Shaffer/Weldon say Atta's Brooklyn cell was identified before 9/11
Able Danger hearings and Lt. Col. Anthony Shaffer / Rep. Curt Weldon statements (2005) · 2005-09-21
Able Danger officers testified they had identified Atta before 9/11 and were blocked from notifying the FBI. Commission staff found the claim unsupported.
CIA SEIBs June–August 2001: Bin Ladin attacks 'imminent' / 'in the US'
The Central Intelligence Agency's 9/11 File (NSAEBB 381) · 2001-08-07
CIA senior briefs from June–August 2001 repeatedly warned of imminent Bin Ladin operations, including a 7 August SEIB titled 'Bin Ladin Determined to Strike in the US', and a 24 August note that an associated individual was considering U.S. operations without timing or targets.
Coleen Rowley: FBI HQ blocked a FISA search of Moussaoui's laptop
Coleen Rowley memo to FBI Director Mueller (May 2002) on the Moussaoui case · 2002-05-21
A flight-school student connected to radical jihadist travel was in FBI custody before 11 September; a requested FISA search was not obtained.
Urban Moving Systems five employees detained after being reported celebrating / filming
FBI files on Urban Moving Systems and five Israeli nationals detained 11 September 2001 · 2001-09-11
Five Urban Moving Systems employees were detained after witness reports they filmed and appeared to celebrate the attacks; they were later deported without terrorism charges.
Phoenix memo, 10 July 2001: bin Laden students at U.S. aviation schools
FBI Phoenix Electronic Communication, 10 July 2001 (Kenneth Williams) · 2001-07-10
An FBI agent documented a bin Laden–flight-school hypothesis in July 2001 that was not actioned nationally before the attacks.
AA77 hijacked; Hazmi and Mihdhar aboard; Pentagon impact
9/11 Commission Report · 2004-07-22
The two men assisted in San Diego in 2000 were AA77 hijackers on 11 September 2001.
Independent / media
56Peter Dale Scott — 9/11 as a deep event: CIA personnel helped allow it (Toronto Report ch.5)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Scott's 2012 chapter restates a documented CIA-to-FBI withholding pattern around Mihdhar and Hazmi (Malaysia 2000, visa, watchlisting) attributed to a small Alec Station group, and adds a Saudi-GID liaison hypothesis plus an 'allowed to proceed' inference.
Paul Zarembka — Insider trading before 9/11 re-examined (Toronto Report ch.6)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
A 2012 hearing paper surveys three academic option-market studies and argues the combined pre-attack activity is not plausibly random, while treating UAL/AMR themselves as weak because of hedging.
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.
Wikipedia, 9/11 conspiracy theories — article as finding aid (retrieved 3 Sep 2026)
Wikipedia — 9/11 conspiracy theories (encyclopedia article) · 2026-09-03
On 3 September 2026 the Wikipedia article listed the main 9/11 conspiracy-theory families and pointed at Commission, NIST, State Department, Eagar, and Popular Mechanics as external sources.
David Ray Griffin — Anomalies in the 9/11 Commission Report (Toronto Report ch.2)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Griffin's 2012 chapter lists Commission process constraints (Zelikow, funding, access) and twelve claimed omissions, with footnotes to named books, newspapers, and the Report itself.
IC911 Data Archive — links inactive at ingest
International Center for 9/11 Justice · 2026-09-02
As of 2 September 2026 the IC911 data-archive page states that archive links are inactive and that a large archive of videos, photographs, and documents is being built.
Unresolved contradictions
- CTR-001Bayoumi's intelligence role: Commission 2004 vs FBI 2017
- CTR-002Thumairy assistance: Commission vs FBI 2021
- CTR-0031 February mosque visit: Bayoumi vs Bin Don
- CTR-004Bayoumi first interview vs later account
- CTR-005Chance meeting vs planned meeting
- CTR-006FBI access representation vs later material
- CTR-007WTC7 mechanism: NIST fire vs Hulsey not-fire
- CTR-008WTC dust chips: thermite vs primer paint
- CTR-009Silverstein 'pull it': demolition vs firefighter withdrawal
- CTR-010Able Danger Atta identification
- CTR-011Put options: unusual volume vs no plot-participant profits
- CTR-012Hijacker identities: BBC still-alive vs Commission mistaken-identity
- CTR-013Pentagon: AA77 vs no-Boeing
- CTR-014UA93: passenger revolt vs shoot-down
- CTR-015WTC7 free fall: NIST consistency vs demolition signature
- CTR-017WTC 7 Stage 1: NIST gradual vs Chandler instantaneous whole-roofline free fall
- CTR-018Commission completeness vs Griffin omissions list
- CTR-019IC911 journal vs IC911 journal on the Pentagon object
- CTR-020CIA withholding: incompetence vs allowed-to-proceed
- CTR-021CIA IG August 2001 praise vs 2004 CIA OIG / Commission on CTC
- CTR-022NTSB public-docket refusal vs NSArchive FOIA release of the same path/ATC files