Article originally published in "The Telegraph"I remember, during the Iraq-Iran war in the 1980s, seeing teenagers and old men being given green keys to Paradise and marched off to be cannon fodder for the Iraqi guns. When they were killed (or “martyred”), their parents or children, and the whole neighbourhood, were ordered to celebrate their martyrdom with lights and religious music.Since childhood, I have been familiar with the Shia celebrations of Muharram, when the martyrdom of Hussain, grandson of the Prophet of Islam, at the hands of a so-called usurper of the Caliphate, Yazid, is mourned with weeping, chanting, self-flagellation...