Excerpt:
Some Muslims lead such separate lives that they believe Britain is an Islamic country where the majority of people share their faith, according to a report to be published this week.
Evidence gathered by Dame Louise Casey, the government's community cohesion tsar, will lift the lid on how some Muslims are cut off from the rest of Britain with their own housing estates, schools and television channels.
Her report finds that thousands of people from all-Muslim enclaves in northern cities such as Bradford, Dewsbury and Blackburn seldom, if ever, leave their areas and have almost no idea of life outside.