Last week's Policy Exchange survey had some hopeful signs, Muslims do overwhelmingly identify with Britain. But given how segregated the country and some Muslim communities are, how can we be sure which 'Britain' they identify with?
Despite decades of failures, it is worth noting that problems integrating Muslim minorities are hardly rare around the world, and this is not a problem unique to the United Kingdom. That brings us to the final unsayable thing – well known to most British people but unmentionable to officials and politicians: Islam is a special case.
Casey said on the BBC's Daily Politics that Islam "is a peaceful religion" (to furious agreement from the politicians present), and the report says that sharia law is being "abused". The review does a very good job of exposing government complacency and official ineptitude, but there are clearly some subjects that are still off limits