H019
Published hijacker identities are substantially wrong (some named men were not aboard)
BBC 2001 still-alive reports and later identity literature. Official account: mistaken/stolen names. Flight, visa, and Hamburg files are the principal contradicts for a global version of the claim.
Likelihood — more or less than 50%
29%
Less than 50% — contradicted by the sources
Start at 50%. Move by half of the net source score after uncertainty. Net source score is -0.56 (from −1 contradict to +1 support). Uncertainty is 26%. So 50% + 50% × -0.56 × 74% remaining certainty = 29%.
0.5 + 0.5 × -0.56 × (1 − 0.26) = 0.293
Recalculate with sourcesAdversarial challenge
- Contradicting objects: 2
- Supporting objects: 1
- Distinct source classes: 3
- Objects with a zero quality dimension: 1
Version history
v1 · 2004-07-22 · conf 0.12 · unc 0.35
Week-one identity errors were real; a global fake-19 claim is contradicted by flight and visa files.
supports1
BBC 23 September 2001: some named hijackers reported still alive
BBC News, 23 September 2001 — reports that some named hijackers were still alive · 2001-09-23
Reputable outlets reported in September 2001 that some named hijackers were alive.
human_seed · seeded · BBC still-alive reports in week one.
indeterminate1
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.
human_seed · seeded · Linguistic report title does not state whether the speaker is Atta.
weakly contradicts1
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.
human_seed · seeded · AA11 as a real flight with named hijacker-pilot Atta is multiply sourced.
contradicts1
Commission: hijacker-still-alive reports were mistaken identity
9/11 Commission Report · 2004-07-22
The Commission treats early 'hijackers alive' stories as identification errors.
human_seed · seeded · Commission: mistaken identity.
Human review can dispute any AI or seeded link. Seeded links are labelled and are not silent overwrites.
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