London is one of the world's centres of Arab journalism and political activism. The failure of left and right, the establishment and its opposition, to mount principled arguments against clerical reaction has had global ramifications. Ideas minted in Britain – the notion that it is bigoted to oppose bigotry; 'Islamophobic' to oppose clerics whose first desire is to oppress Muslims – swirl out through the press and the net to lands where they can do real harm.