I'm not really in a position to comment on the anti-war movement in Britain. But one problem with the anti-war movement in North America was the fear of seeming unpatriotic after 9/11. It really distorted the honesty of the movement.
It used slogans and iconography which were designed in response to this fear. The economic analysis was dropped because it was seen as divisive. I wrote the book because we need to be drawing the connections between the violence and the economic system it serves, and even if it means that there are fewer people out for demonstrations it would be a more sustainable movement.
We don't want activism that is just a short blast and then followed by disillusionment.
The anti-war movement in North America
Naomi Klein in Socialist review about her new book “The Shock Doctrine” and the movement against the war in Iraq: