The west has a great deal to answer for in the Middle East, from Britain's belated empire-building after the First World War to the US and British policy that condemns modern Iraq to the material and social squalor of a half-century ago.

Since the attack on the United States on September 11 2001, and the US retaliation in Afghanistan and Iraq, there must be few people who have not felt a twinge of nostalgia for the cold war.

Suicidal violence is not the exclusive property of the Muslim world. Suicide bombings were a tactic of nationalist struggles in 19th-century Europe and Russia, the far east during the second world war and the Vietnam war, and in modern Sri Lanka.

Saudi Arabia is a puritanical state that claims a monopoly of wisdom and virtue.