CEP Senior Advisor Prof. Ian Acheson writes: Bear in mind these dead, I can find no plainer words,’ wrote the Northern Irish poet John Hewitt reflecting on the Troubles’s terrible death toll. How we remember the victims of terrorism and articulate the harm it causes comes to mind today, the 20th anniversary of the 7/7 Islamist attack on London’s transport network. The bombings killed 52 commuters and sentenced hundreds more to a life without limbs, eyes or peace of mind.