It reminds me of the main character's job rectifying old articles. Except today it's not archived issues of the paper, but web pages. That makes it so much easier to modify content without a trace.

From chapter 4:
"Winston dialled 'back numbers' on the telescreen and called for the appropriate issues of The Times, which slid out of the pneumatic tube after only a few minutes' delay. The messages he had received referred to articles or news items which for one reason or another it was thought necessary to alter, or, as the official phrase had it, to rectify. For example, it appeared from The Times of the seventeenth of March that Big Brother, in his speech of the previous day, had predicted that the South Indian front would remain quiet but that a Eurasian offensive would shortly be launched in North Africa. As it happened, the Eurasian Higher Command had launched its offensive in South India and left North Africa alone. It was therefore necessary to rewrite a paragraph of Big Brother's speech, in such a way as to make him predict the thing that had actually happened."
http://www.readprint.com/chapter-7603/George-Orwel l