There are a number of firsts with this morning’s post. It arrived early. It also bought a card announcing what will be in some weeks’ time a couple’s second child. The card is a reproduction of the mother’s last scan showing a very healthy child in her womb. The scans, which have been instigated to alert parents to handicapped children, thereby opening the door for an abortion, might, in the longer run, paradoxically have a totally different effect on the...