Peter Bajomi-Lazar and Vaclav Stetka, Department of Politics and International Relations, Oxford, give a talk for the Reuters Institute of Journalism Hilary term 2011 Seminar series on 23rd February 2011. Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/