AT Westminster yesterday, Boris Johnson announced that a public inquiry into the handling of the Covid crisis would begin next spring. Labour opposition leader Sir Keir Starmer had an inquiry: Why? Why wait so long? But, told that there was probably more pandemic palaver to come in winter, and that it would be unwise to weigh down frontline staff with questions, Sir Keir promised that, despite some reservations, his party would be as helpful as it could. The Prime Minister’s updates on Covid are not occasions for too much disunity. It was really only the Nats who introduced a sour note, though Boris took a noticeably less hysterical approach in return, even correcting himself when he said “Scottish Nationalist (sic) Party”.