It was one of the most shocking events of modern times; an attack on an a scale previously unimaginable, and a day that should never be forgotten.
Using contemporary accounts, the stories of witnesses and survivors, and the words of the victims, I'll tell the story of 9/11.
This is a series in six parts. This episode looks specifically at the hijacking of American Airlines Flight 11, and events at the North Tower of the World Trade Center.
Visit www.greatdisasters.co.uk for the full transcript and more.
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