“…The second one comprises internal aspects of EU counter-terrorism (Monar 2007, Clarke 2005, Den Boer et al 2008, Security and Defence Agenda 2010, including financial issues (Kaunert and Giovanna 2010) and the role of agencies (Kennedy 2004, Bures 2010Bures 2008, Friedrichs 2009, Kaunert 2010Bigo et al 2007 on EU security agencies). The third one focuses on the legal dimension of EU counter-terrorism (Dumitriu 2004, Wessel 2006, Guild 2008, van Thiel 2008, Eckes 2009, Isiksel 2010. While a relevant portion of the available scientific works tends to be empirically and policy oriented (Spence 2004, de Vries 2005, Coolsaet 2008, Eder and Senn 2009, the number of theoretically informed studies has been increasing as the EU's action in counter-terrorism unfolds and expands.…”