It is now getting on for 20 years since the attacks on New York and Washington on Sept 11, 2001, and the idea that international politics should be organised around a "war on terror" is no longer fashionable. But suspicion and hatred of the Muslim world, inflamed by 9/11, have not faded with the passage of time.

On the contrary, Islamophobia, as it is often called, is now a central part of politics in most of the world's major power centres - from the US and the European Union, to China and India.