# September 11 This title routes to [[wiki/September 11 Attacks|September 11 Attacks]]. ## Relationships - **canonical entry:** [[wiki/September 11 Attacks|September 11 Attacks]]. - **master collection:** [[collections/Terrorism, Counterterrorism, and the Intelligence Environment|Terrorism, Counterterrorism, and the Intelligence Environment]]. ## Sources / Provenance - [National Commission on Terrorist Attacks Upon the United States, *The 9/11 Commission Report*, July 22, 2004](https://www.9-11commission.gov/report/911Report.pdf). **As of:** 2026-09-23