Saturday, July 2, was sunny in London, and the crowds were flocking to Wimbledon and to the annual Henley Regatta. Julian Assange, the founder of the whistle-blower website Wikileaks.org, was making his way by train from house arrest in Norfolk, three hours away, to join me and Slovenian philosopher Slavoj Zizek for a public conversation about WikiLeaks, the power of information and the importance of transparency in democracies.