Gaza reaches Europe as a daily bulletin of rubble, hunger and diplomatic concern. The disaster remains intolerable. Our attention has learned to live with it. At half past seven Gaza appears on a kitchen screen somewhere in Britain. A road cut through grey rubble. A woman carrying water. A child holding a saucepan with both hands. The presenter lowers her voice by half a tone, as presenters do when suffering has been placed between the weather and the football. Then the programme moves on. No malice is required. The kettle boils, trains are delayed, interest rates remain disagreeable. The catastrophe has entered the furniture of the morning. It is seen,…