Britain, whose intelligence cooperation with America is probably uniquely deep in the history of the world,

Indeed, it is no accident that the greatest trust in the intelligence world is that between Britain, America, Australia, New Zealand and Canada – sometimes known in this field as the Five Eyes. This exists because of a common experience of kinship, language, war and living under law-based liberty. It is emphatically not the product of untrammelled state power, but of a culture that knows that its eyes (five pairs being better than one) need to scan the horizon to stay free.