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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
- Osama Bassnan
- Hani Hanjour
- Holly Ratchford
- Thomas Kean
- Mohamed Atta
- Ziad Jarrah
- Larry Silverstein
- Norman Mineta
- Dick Cheney
- Anthony Shaffer
- Kenneth Williams
- 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
- 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
- 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
- H002UA175 struck WTC2Score
- 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.
- 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.
- 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
66911DA email: 6 blocks from Ground Zero, second-plane sound
September 11 Digital Archive (RRCHNM / ASHP) · 2001-09-12
A public-archive email describes street-level ash, paper, a 08:53 Wall Street exit, and the sound of a second aircraft hitting the South Tower from 5–6 blocks away, plus a Pentagon-evacuation report from Washington.
Graeme MacQueen — 156 eyewitnesses describing explosions at the Twin Towers (Toronto Report ch.8)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
MacQueen compiled 156 accounts, mostly FDNY oral histories, in which speakers used explosion/bomb language about the towers; he documents both the original wording and some later retractions.
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.
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.
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.
Lorie Van Auken and Bob McIlvaine — Toronto Report ch.1 family testimony
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
Two 9/11 family members testified in 2011 about their dead, the Jersey Girls' campaign for a full investigation, three NORAD public timelines, and Van Auken's contemporaneous unease at the Florida classroom footage.
Evidence contradicting
16Bažant pancake model vs NIST initiation sequence
Bažant et al. — pancake / progressive-collapse papers on the WTC towers · 2002-01-01
Published official-adjacent models disagree on pancake vs bowing-column initiation of the tower collapses.
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.
NIST / critics: red/gray chips consistent with primer paint, not thermite
NIST WTC investigation FAQs (towers and WTC 7) · 2019-11-20
NIST and subsequent paint-chemistry arguments attribute the red chips to known coatings rather than explosives.
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.'
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.
Commission: Bayoumi did not give them money beyond the reimbursed check
9/11 Commission Report · 2004-07-22
Commission found no continuing financial transfers from Bayoumi to the two men.
Ambiguous
81Eagar & Musso 2001: WTC fires did not melt steel; floor-truss connections were the weak point
Thomas W. Eagar & Christopher Musso — Why Did the World Trade Center Collapse? Science, Engineering, and Speculation (JOM, Dec 2001) · 2001-12-01
In December 2001 MIT materials engineers published that WTC fires were not hot enough to melt steel and that weakened floor-truss connections were the likely weak point.
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.
Chandler, Walter, Szamboti — Instantaneous free fall of WTC 7 and NIST's attempt to hide it (Jun 2023)
Journal of 9/11 Studies · 2023-06-01
Using multi-point tracking, Chandler/Walter/Szamboti report that after ~1.4 s of near-immobility of most of the north and west rooflines, those rooflines entered free fall together within ~0.2 s at ~8.0–8.2 s after east-penthouse collapse, ~9.8 m/s² for ~2.5 s.
Hulsey et al. (UAF): fire did not cause the observed collapse of WTC 7
Hulsey, Quan, Xiao — University of Alaska Fairbanks WTC 7 study (2019–2020) · 2020-03-01
A University of Alaska Fairbanks team published a model concluding fire did not cause WTC 7's observed collapse.
NIST NCSTAR 1: impact plus fire initiated collapse of WTC 1 and WTC 2
NIST NCSTAR 1 — Final Report on the Collapse of the World Trade Center Towers (2005) · 2005-09-01
NIST published a fire-and-impact initiation sequence for WTC 1 and WTC 2 in 2005.
NIST: no corroborating evidence for explosives or thermite
NIST WTC investigation FAQs (towers and WTC 7) · 2019-11-20
NIST published a negative finding on explosives and thermite as collapse causes.
Contemporary reports
76Bažant pancake model vs NIST initiation sequence
Bažant et al. — pancake / progressive-collapse papers on the WTC towers · 2002-01-01
Published official-adjacent models disagree on pancake vs bowing-column initiation of the tower collapses.
911DA email: 6 blocks from Ground Zero, second-plane sound
September 11 Digital Archive (RRCHNM / ASHP) · 2001-09-12
A public-archive email describes street-level ash, paper, a 08:53 Wall Street exit, and the sound of a second aircraft hitting the South Tower from 5–6 blocks away, plus a Pentagon-evacuation report from Washington.
Eagar & Musso 2001: WTC fires did not melt steel; floor-truss connections were the weak point
Thomas W. Eagar & Christopher Musso — Why Did the World Trade Center Collapse? Science, Engineering, and Speculation (JOM, Dec 2001) · 2001-12-01
In December 2001 MIT materials engineers published that WTC fires were not hot enough to melt steel and that weakened floor-truss connections were the likely weak point.
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.
Sonic Memorial: Eva Garfield Greenwich Village voicemails, 11 September
September 11 Digital Archive (RRCHNM / ASHP) · 2001-09-11
The Sonic Memorial collection includes saved 11 September voicemails in which Eva Garfield, from Greenwich Street, says she watched the towers fall, plus other WTC-building memory recordings.
Barry Jennings and Michael Hess: explosions and being trapped in WTC 7
BBC World — Jane Standley live report of WTC 7 collapse (11 September 2001) · 2001-09-11
Jennings and Hess were trapped in WTC 7 and described explosion-like events and delayed rescue.
Later recollections / analysis
87Graeme MacQueen — 156 eyewitnesses describing explosions at the Twin Towers (Toronto Report ch.8)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
MacQueen compiled 156 accounts, mostly FDNY oral histories, in which speakers used explosion/bomb language about the towers; he documents both the original wording and some later retractions.
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.
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.
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.
Chandler, Walter, Szamboti — Instantaneous free fall of WTC 7 and NIST's attempt to hide it (Jun 2023)
Journal of 9/11 Studies · 2023-06-01
Using multi-point tracking, Chandler/Walter/Szamboti report that after ~1.4 s of near-immobility of most of the north and west rooflines, those rooflines entered free fall together within ~0.2 s at ~8.0–8.2 s after east-penthouse collapse, ~9.8 m/s² for ~2.5 s.
Hulsey et al. (UAF): fire did not cause the observed collapse of WTC 7
Hulsey, Quan, Xiao — University of Alaska Fairbanks WTC 7 study (2019–2020) · 2020-03-01
A University of Alaska Fairbanks team published a model concluding fire did not cause WTC 7's observed collapse.
Official documents
80NIST NCSTAR 1: impact plus fire initiated collapse of WTC 1 and WTC 2
NIST NCSTAR 1 — Final Report on the Collapse of the World Trade Center Towers (2005) · 2005-09-01
NIST published a fire-and-impact initiation sequence for WTC 1 and WTC 2 in 2005.
NIST: tower collapse times ~11 s (WTC1) and ~9 s (WTC2); minimal resistance below
NIST WTC investigation FAQs (towers and WTC 7) · 2011-09-14
NIST published collapse elapsed times near free-fall order and described minimal resistance below the initiation zone.
NIST FAQ: WTC 7 north face had a 2.25-second free-fall stage
NIST WTC investigation FAQs (towers and WTC 7) · 2019-11-20
NIST measured a 2.25-second free-fall stage of WTC 7's north face and described negligible support from the structure below.
NIST: no corroborating evidence for explosives or thermite
NIST WTC investigation FAQs (towers and WTC 7) · 2019-11-20
NIST published a negative finding on explosives and thermite as collapse causes.
NIST / critics: red/gray chips consistent with primer paint, not thermite
NIST WTC investigation FAQs (towers and WTC 7) · 2019-11-20
NIST and subsequent paint-chemistry arguments attribute the red chips to known coatings rather than explosives.
1 February 2000 restaurant encounter — chance or design unknown
9/11 Commission Report · 2004-07-22
A lunch on 1 February 2000 involving Bayoumi, Hazmi, and Mihdhar is documented because Bayoumi reported it.
Independent / media
56Graeme MacQueen — 156 eyewitnesses describing explosions at the Twin Towers (Toronto Report ch.8)
The 9/11 Toronto Report (2012), International Hearings on the Events of September 11, 2001 · 2012-09-11
MacQueen compiled 156 accounts, mostly FDNY oral histories, in which speakers used explosion/bomb language about the towers; he documents both the original wording and some later retractions.
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.
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.
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.
Chandler, Walter, Szamboti — Instantaneous free fall of WTC 7 and NIST's attempt to hide it (Jun 2023)
Journal of 9/11 Studies · 2023-06-01
Using multi-point tracking, Chandler/Walter/Szamboti report that after ~1.4 s of near-immobility of most of the north and west rooflines, those rooflines entered free fall together within ~0.2 s at ~8.0–8.2 s after east-penthouse collapse, ~9.8 m/s² for ~2.5 s.
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.
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-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