Erebus

September 11 · source record · report

Report of Investigation: Alleged Misconduct by Senior DoD Officials Concerning the Able Danger Program and Lieutenant Colonel Anthony A. Shaffer, U.S. Army Reserve

U.S. Department of Defense, Office of the Inspector General · 2006

AI-verified citationSRC-DOD-IG-ABLEDANGER-2006
identifier / locator
Case No. H05L97905217, September 18, 2006; 71-page scan
url
https://irp.fas.org/agency/dod/ig-abledanger.pdf
verification note
The official host returns 403 to automated fetchers and the live mirror returned an empty document; the report was obtained 2026-08-26 from an archive.org capture of the mirrored official scan. The document has no text layer, so the conclusions were read by OCR from the transmittal memorandum and printed p. 3.
reliability notes
  • Provenance is a mirror of a mirror: an archived capture of a non-government host's copy of the official scan. Recorded openly because the finding matters and no reachable government copy was found.
  • A department investigating allegations against its own senior officials.
  • Counts must not be conflated: this report describes four witnesses who recalled a chart, while the separate Senate hearing record concerns five witnesses the department barred from testifying.

Evidence drawn from this source

Undermines· strongSEP-E028

The inspector general did not substantiate the pre-attack identification

what the source states
"The investigation addressed nine specific allegations raised in the media and by various Members of Congress. We did not substantiate those allegations. The evidence did not support assertions that Able Danger identified the September 11, 2001, terrorists nearly a year before the attack, that Able Danger team members were prohibited from sharing information with law enforcement authorities, or that DoD officials reprised against LTC Shaffer for his disclosures regarding Able Danger." And: "We concluded that prior to September 11, 2001, Able Danger team members did not identify Mohammed Atta or any other 9/11 hijacker. While we interviewed four witnesses who claimed to have seen a chart depicting Mohammed Atta and possibly other terrorists or 'cells' involved in 9/11, we determined that their recollections were not accurate." The chart in question "was produced by Orion Scientific Corporation (Orion) in May 1999 and contained the names and/or photographs of 53 terrorists ... including a Brooklyn cell, but it did not identify Mohammed Atta."
what we infer
A specific documentary alternative to the witnesses' recollection: a real 1999 chart, with a real Brooklyn cell, that did not name Atta. The finding does not dispose of the dispute — the underlying data was destroyed — but it is the only reconstruction of the artifact anyone has published.
limitations
  • A department investigating allegations against its own senior officials.
  • Obtained from an archived capture of a mirrored copy of the official scan; no reachable government copy was located, and the quotes are OCR-derived.
  • This report describes four witnesses who recalled the chart; the separate figure of five concerns witnesses barred from testifying, and the counts must not be merged.