Conor Gearty, who teaches at LSE, and who's most recent book is Liberty and Security, had a short piece in the Feb 19 London Review of Books.

Here's how it ends:

"In the government's view, the smallest Muslim child needs to be watched for signs of extremism. There was always a risk that identity politics would be turned into a cultural war, the majority versus the rest. We don't hurl racist abuse anymore, not in public. We say 'extremist.'"