How does Orwell explore the threat to individuality in 1984?

A useful way to approach this question might be to think about the political context in which Orwell wrote 1984. Orwell's novel can be seen as a reaction to the totalitarian systems of government which emerged in the first half of the 20th century and as a critique of the way the powerful can limit individual freedom in an attempt to strengthen their political influence and control. However, besides the regimented lifestyle imposed on the citizens of Oceania, how is individuality shown to be curtailed in the novel? Orwell portrays an 'Inner Party' which has moved beyond mere physical control and has started to dominate the inner, psychological lives of its citizens. This can perhaps most clearly be seen in 'Newspeak' - a language developed to limit the range of linguistic expression and consequently the range of thought and mental freedom of the individual. Orwell, through his portrayal of 'Newspeak', shows one of the many ways in which a totalitarian government may pose a severe threat to individuality. Even in Winston's concession that hope, if there is any, must lie with the 'proles', Orwell reveals that his protagonist can only conceive of people as groups rather than as individuals - a sign of how pervasive and successful the party's attack on any sense of individuality has been.