“You have an identity, don’t you? And I think that goes for the whole human race. It depends on the language you speak and the place you were born in…and it seems that…you feel that loyalty. If you betray that loyalty…that’s a life-changing thing to do…I’m describing people who, really, in the end, hate their own country and hate their own people,” says David Pryce-Jones, author of Treason of the Heart: From Thomas Paine to Kim Philby.