The three part documentary is to be shown again on BBC2 on the 18-20th January 2005.
"If one looks at the history of the Islamist movement and its ideas it is clear that its high point came in the late 80s when it seemed on the verge of success across the Muslim world.
But then in the 1990s Islamism failed dramatically in its attempts to create revolutions because the ideas failed to inspire the masses. They did not appeal to the majority of people.
The attacks on 11 September were not the expression of a confident and growing movement, they were acts of desperation by a small group frustrated by their failure which they blamed on the power of America. It is also important to realise that many within the Islamist movement were against this strategy."