It is, of course, an excellent thing and a mark of social progress when an institutional bastion falls to woman-power. If the days are gone when the upper echelons of UK diplomacy were closed to women then so much the better, when a woman who married had to leave the service, and when female diplomats — with the honourable exception of Pauline (now Baroness) Neville-Jones, who resigned after being passed over for Paris — knew better than to hope for the top postings.