"Here in America, I have followed the controversy about immigration and ethnicity, which has preoccupied many, and which has even divided some, in the conservative camp. In Britain, we too know the consequences of mass immigration in past years. In both our countries, we must recognise the priceless asset of a common language which forges national unity out of the multi-ethnic variety, and so makes democratic debate possible–the more so because the English language is soaked in the values of lib