1. The editors explain that several factors may have led the European Union to take an active role in the fight against terrorism. Which of the factors do you think is the most significant and why?

2. One of the challenges that the EU faces in implementing its security policies is the reaction of member states to the policies. How can the EU ensure that every state accepts and implements the policies?

Argomaniz, J., Bures, O., & Kaunert, C. (2015). A decade of EU counterterrorism and intelligence: A critical assessment. Intelligence and national security, 30(2-3), 191--206.