In June 2013, Edward Snowden identified himself as the whistleblower who provided the Guardian with top-secret NSA documents leading to revelations about US surveillance on phone and internet communications.

Last month, Citizenfour, Laura Poitras’s film that follows Snowden as his leaks about the activities of the NSA shock the world, won an Oscar for best documentary.

The Guardian won a Pulizer prize for public service following publication of the Edward Snowden story. Here the Guardian’s editor-in-chief, Alan Rusbridger, the editor-in-chief of theguardian.com, Janine Gibson, head of news Stuart Millar, and defence and intelligence correspondent Ewen MacAskill join Guardian members at an event to discuss how the Snowden revelations hit the headlines.

The panel discussion follows a screening of Citizenfour at a Guardian Live event in King’s Place, London, on Monday 2 March, 2015. Guardian Live is our series of events, debates and festivals for Guardian Members. Find out how to sign up.