I was out walking my dog yesterday. Up ahead I saw a small group of pre-school children being taken for a walk by nursery staff. They were tiny against the adults holding their hands. Suddenly a council tractor drove past them. A big green and yellow thing. The children were too far away for me to hear but I could see them judder with excitement and point at this wondrous toy made real. That moment of innocence touched me, following a day of such horrendous news.