Don’t give the jihadists what they want

TERRORISTS often set out to slaughter the innocent. But none could be more innocent than eight-year-old Saffie Roussos (pictured). She was one of the children, most of them teenagers, who flocked to see Ariana Grande give a concert in Manchester on May 22nd. After the show, a suicide-bomber detonated a device packed with metal nuts and bolts, injuring over 60 and killing 22, including Saffie. As with the school massacres in Beslan in Russia in 2004 and Peshawar in Pakistan in 2014, the aim was to strike people where they are most vulnerable—as parents and grandparents and uncles and aunts. It succeeded.For Britain, which had been spared deadly bomb blasts since the attacks in London in 2005, this was proof of how hard it is to foil every plot every time (see ). For the world, which suffers attacks continually, it raises once again the question of how to stop people who are determined to kill.