Teachers will, in time, have to explain to students why life was once so very different in Ireland on Good Friday. Those teachers, unless we risk Brexit-scale disruption and division, will also tell their pupils why the three Sheehan brothers, from Fermoy in Co. Cork, died fighting with Canadian troops in WWII and, hopefully, explain the structures we put in place after the war to try to ensure that we never have WWIII.

There has been little else but talk about North Korea’s weapons programme for almost quarter of a century. That may not be true for much longer, says Michael Mandelbaum