(BBC) – Two children this week made me think very hard about the waste and horror of this war in Syria, of every war. The first was a boy of eight called Hani Jadid. He was lying on a trolley outside Aleppo university hospital. The day was hot and all he was dressed in was a disposable nappy. A tube came out of it leading to a plastic bag to collect his urine. His right arm was gone, amputated above the elbow. The stump had been heavily wrapped in new, cream-coloured bandages, like both his legs. Hani was being sent home to start his new life. He will have to live it without four cousins, who were killed by the shell that maimed him.