How do you react to the news – the result of a major BBC survey - that 11 per cent of British Muslims sympathise with fighting against the West? That 20 per cent of them believe Western liberal society can never be compatible with Islam? That 11 per cent feel that organisations which publish images of the Prophet Mohammed deserve to be attacked? I find these numbers profoundly disconcerting. But they are far from surprising. For years, Islamists and other extremists have taken advantage of grievances of Muslims in Britain, and have successfully identified ways to integrate them under one “Islamic” banner. Sensitive issues such as Palestine, Kashmir, and Iraq have been used to bring together...