In the non-fictional world in which we live, unfortunately, there are numerous examples of privacy erosion.
Soon after the 11 September, 2001, terrorist attacks, Northwest Airlines submitted millions of passenger records -- including credit card numbers, addresses and telephone numbers -- to the National Aeronautics and Space Administration's Ames Research Centre, after company officials publicly stated that it "never provided this type of information to anyone".
The carrier told the Washington Post that the data was for a secret US government project to improve aviation security.
Although passengers were not informed, Northwest officials insist privacy policies were not violated. Not so, says information-privacy group The Electronic Privacy Information Centre. The organisation plans to file a complaint with the US Department of Transportation on Wednesday.
This is the second such case in the US. Last year, JetBlue Airways admitted to violating customer privacy when it handed over 1.1 million passenger records to the US Defense Department. Passengers have since taken class-action lawsuits against the airline.
In Australia, privacy advocates are battling another form of "cancer" -- RFID (radiofrequency identification) technology.
Malcolm Crompton, Australia's Privacy Commissioner, told ZDNet Australia's James Pearce that if incorrectly implemented, RFID could be a big problem.
It's a post-sale concern -- the use of these tags along the supply chain to point of sale wasn't the issue. It's what happens after that, said Crompton. Although he conceded that RFID technology was not inherently bad, he said that individuals and companies in the United States considering collecting data after the point of sale was a cause for concern.