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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
Matching hypotheses
Matching claims
- unsupportedCLM-023
The twin towers were destroyed by directed energy, not by impact, fire, or conventional explosives.
- 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-033
First-responder explosion-language about the Twin Towers is evidence of demolition charges.
- well_supportedCLM-038
Street-level witnesses in lower Manhattan saw/heard a second aircraft hit the South Tower.
Evidence supporting
12NIST 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: 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.
Judy Wood: directed-energy destruction of the towers
Judy Wood — Where Did the Towers Go? (directed-energy claims) · 2010-01-01
An independent researcher published a directed-energy account of the tower destructions.
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.
Korsgaard — Preliminary study of flashes during South Tower collapse (May 2024)
Journal of 9/11 Studies · 2024-05-01
A 2024 preliminary paper reports flashes of light in South Tower collapse footage.
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.
Evidence contradicting
3Jonathan 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.
Bažant 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.
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.
Ambiguous
11Commission: 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.
David Chandler — Descent and tilting of the North Tower antenna (Mar 2025)
Journal of 9/11 Studies · 2025-03-01
Chandler published a March 2025 video-measurement paper on North Tower antenna descent and tilt.
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.
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.
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
8Commission: 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.
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.
Bažant 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.
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.
Commission: UA175 struck WTC2 at 09:03:11
9/11 Commission Report · 2004-07-22
A large aircraft identified as UA175 struck WTC 2 at 09:03:11, captured on live television.
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.
Later recollections / analysis
18David Chandler — Descent and tilting of the North Tower antenna (Mar 2025)
Journal of 9/11 Studies · 2025-03-01
Chandler published a March 2025 video-measurement paper on North Tower antenna descent and tilt.
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.
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.
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.
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.
Judy Wood: directed-energy destruction of the towers
Judy Wood — Where Did the Towers Go? (directed-energy claims) · 2010-01-01
An independent researcher published a directed-energy account of the tower destructions.
Official documents
9Commission: 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.
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: 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.
Commission: UA175 struck WTC2 at 09:03:11
9/11 Commission Report · 2004-07-22
A large aircraft identified as UA175 struck WTC 2 at 09:03:11, captured on live television.
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.
NORAD exercises on 11 September including Vigilant Guardian
Michael Bronner, '9/11 Live: The NORAD Tapes,' Vanity Fair (August 2006) · 2006-08-01
NORAD was running exercises on 11 September that included hijack-related injects, and operators asked whether reports were exercise or real.
Independent / media
12David Chandler — Descent and tilting of the North Tower antenna (Mar 2025)
Journal of 9/11 Studies · 2025-03-01
Chandler published a March 2025 video-measurement paper on North Tower antenna descent and tilt.
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.
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.
Judy Wood: directed-energy destruction of the towers
Judy Wood — Where Did the Towers Go? (directed-energy claims) · 2010-01-01
An independent researcher published a directed-energy account of the tower destructions.
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.
Korsgaard — Preliminary study of flashes during South Tower collapse (May 2024)
Journal of 9/11 Studies · 2024-05-01
A 2024 preliminary paper reports flashes of light in South Tower collapse footage.
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-016NORAD first story vs NORAD tapes
- 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