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9/11 attacks investigation

The official investigations conclude that the September 11, 2001 attacks were orchestrated by al-Qaeda and that systemic intelligence and organizational failures allowed the plot to succeed.

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Feb 2, 2026

What primary sources confirm Al-Qaeda leaders planned the 9/11 attacks?

The core primary-source evidence that leaders planned the consists of audiotapes and videotapes attributed to and senior operatives, post‑capture/confession statements by key plotters such as , seized...