Most of the European citizen can today live their lives in relative security. At the same time our communities are faced with more and greater security threats than ever. Terrorism has risen to become one of the greatest security threats to the European union and its citizens and one can therefore ask the question; has the European Union view of terrorism changed over time or has the interpretation of the threat been constant? The purpose of this essay is thus to analyse how the European Union describe and see the threat of terrorism before and after the attack on the United States 2001. The analytical instrument of the essay consist of Buzan et al. (1998) Securitization Theory that enables extraordinary measures to be...