Contributor(s): Dr Ingrid Volkmer, Professor Mary Kaldor | Dr Ingrid Volkmer completely rethinks the “public sphere” concept for an age of global media. Ingrid Volkmer is Associate Professor in the Department of Media and Communications at the University of Melbourne. Mary Kaldor is Professor of Global Governance and Programme Director, Civil Society and Human Security Research Unit, LSE. Nick Couldry (@couldrynick) is Professor of Media, Communications and Social Theory in the Department of Media and communications at LSE. The Department of Media and Communications at LSE (@MediaLSE) has recently been ranked 2nd in the 2014 QS World University Rankings by Subject. Credits: Tom Sturdy (Audio Post-Production), LSE AV Services (Audio Recording).