- Series
- Standalone
- Topics
- Published date
- 2021-09-09
- Year span
- 2001 – 2021
On the morning of Tuesday, September 11, 2001, four commercial airliners were hijacked above the US by the militant Islamist terrorist group al-Qaeda. What followed was the deadliest terrorist attack in history. Twenty years on, Dominic Sandbrook and Tom Holland look back at the events and discuss their impact.