A Duty of CareOne of our most celebrated historians shows how we can use the lessons of the past to build a new post Covid society in Britain The 'duty of care' which the state owes to its citizens is a phrase much used, but what has it actually meant in Britain historically? And what should it mean in the future, once the immediate Covid crisis has passed? In A Duty of Care, Peter Hennessy divides post war British history into BC (before covid) and AC (after