Interestingly enough 1984, written in 1949, has not been banned except in the Soviet Union (where it was banned until 1988). In 1981, a Baptist minister in Jackson County, Florida challenged the novel's suitability as proper reading for young Americans, arguing it contained pro-Communist and sexually explicit material, which is particularly odd since it was much more like the Soviet Union in the years after it was written than it was any of the western countries.
And if a few more people read it now, it might scare the living daylights out of some people--both in the US and the UK. Wiki describes it as follows:
It tells the story of Winston Smith, a functionary at the Ministry of Truth, whose work consists of editing historical accounts to fit the government's policies. The book has major significance for its vision of an all-knowing government which uses pervasive and constant surveillance of the populace, insidious and blatant propaganda, and brutal control over its citizens. The book had a substantial impact both in literature and on the perception of public surveillance, inspiring such terms as 'Big Brother' and 'Orwellian'.
It seems to me that Orwell was simply ahead of his time--the title should have been something more like 2024. But, perhaps we can stilll keep government from re-writing history and changing the meaning of words, But the price of freedom is awareness and action.