1. Aristotle, Politics (book 5). http://classics.mit.edu/Aristotle/politics.html. Accessed 01 July 2012
2. Bamford J (2008) The shadow factory; the ultra-secret NSA from 9/11 to the eavesdropping on America. Doubleday, New York
3. Bigo D (2006) Globalized (in)security: the field and the Ban-Opticon. In: Bigo D, Tsoukala A (eds) Illiberal practices of liberal regimes: the (in)security games. L’Harmattan, Paris
4. Brodeur J (1983) High policing and low policing: remarks about the policing of political activities. Soc Probl 30:507–520
5. Brodeur J (2011) The police web. Oxford University Press, Oxford