Lingua franca and linguistic territoriality. Why they both matter to justice and why justice matters for both

The bottom line of my book Linguistic Justice for Europe and for the World (Oxford University Press, 2011, paperback 2015) can roughly be captured in the combination of two recommendations: that the democratization of competence English as a lingua franca should be fostered in Europe and elsewhere and that language communities should be allowed to protect their language against the invasion of English and other powerful languages by imposing their own language in public communication and public education within some territorial boundaries. Most of my critics attack one or the other of these recommendations and some question some of the presuppositions of my whole approach. In this response, I try to refute some of these critiques by clarifying my claims or spelling out my arguments, and I make whatever concessions I believe are required.