Hollywood, so often accused of immorality and bad taste by critics and politicians, is trying to show it can edit out the inappropriate -- and insert sensitivity in trying times.

CNN: Fall movies undergo changes

For instance in 2011 the new media artists Julian Oliver and Danja Vasiliev invented a gadget that allows them to hijack the wifi signal in a library or internet cafe, and to remotely edit the content of news sites such as nytimes.com so that anyone in the room browsing The New York Times on a wireless device sees modified headlines.

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