UPSC 2016 CDS I GK Paper

'Citizenfour', the 87th Academy Award winner in the category of documentary feature, is based on the life of Edward Snowden. Citizenfour is a 2014 documentary film directed by Laura Poitras, concerning Edward Snowden and the National Security Agency (NSA) spying a scandal. Edward Joseph Snowden is an American computer professional, former Central Intelligence Agency (CIA) employee, and former contractor for the United States government who copied and leaked the classified information from the National Security Agency (NSA) in 2013 without authorisation.