More than 50 Iraqi Christians were killed when an al-Qaeda-linked group attacked a Baghdad church last Sunday.<br /><br />The assault has reverberated among Iraqi Christians in the West.<br /><br />The leader of one such church in London, the UK capital, believes it is time for Iraq's 30,0000 strong Christian minority to leave the country.<br /><br />Al Jazeera's Jonah Hull reports from West London.
