In an op-ed, CEP Executive Director David Ibsen writes: "The battle against terrorism in Europe is fought in schools, prisons, homes, and communities across the continent. It is being fought online and in real life by governments, companies, and civil society groups. The battle is for the hearts and minds of the most vulnerable members of society. At the heart of this battle is radicalisation. Terrorism is only able to perpetuate through groups attracting new recruits to their cause. By preying on the alienated and vulnerable, both in person and online, terrorist groups can keep increasing their numbers and keep the threat of terrorism alive. Preventing this radicalisation from taking place, and rehabilitating those who have been targeted, are absolutely essential if we are to tackle the terrorist threat not just in Europe – but worldwide. Combatting radicalisation within state-run institutions, in particular schools and prisons, must be a central pillar of this fight. The two institutions have, for different reasons, large populations who are potentially vulnerable to the spread of extremist ideologies. We not only need a strategy to protect these children in schools, to prevent them from being victimised and brainwashed by radicals in their communities. But we also need trainings for teachers to make sure they know how to deal with young girls and boys who might have been exposed to extremist ideologies.”