Ask any moderately interested Briton to name a black intellectual and chances are the response will be an American name: Malcolm X or Barack Obama, Toni Morrison or Cornel West. Yet Britain has its own robust black intellectual traditions and its own master teachers, among them C.L.R. James, Claudia Jones, Ambalavaner Sivanandan, Stuart Hall and Paul Gilroy. However, while in the USA black public intellectuals are an embedded, if often embattled,...