Nineteen Eighty-Four essay "Notes on Nationalism" about the lack of vocabulary needed to explain the unrecognised phenomena behind certain political forces. In "Nineteen Eighty-Four", the Party's artificial, minimalist language 'Newspeak' addresses the matter. O'Brien concludes: "The object of persecution is persecution. The object of torture is torture. The object of power is power." In the book, Inner Party member O'Brien describes the Party's vision of the future: A major theme of "Nineteen Eighty-Four" is censorship, especially in the Ministry of Truth, where photographs are modified and public archives rewritten to rid them of "unpersons" (persons who are erased from history by the
Nineteen Eighty-Four after Orwell. References to the themes, concepts and plot of "Nineteen Eighty-Four" have appeared frequently in other works, especially in popular music and video entertainment. An example is the worldwide hit reality television show "Big Brother", in which a group of people live together in a large house, isolated from the outside world but continuously watched by television cameras. The book touches on the invasion of privacy and ubiquitous surveillance. From mid-2013 it was publicized that the NSA has been secretly monitoring and storing global internet traffic, including the bulk data collection of email and phone call data. Sales of