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How might the Leveson Inquiry impact on the media?

21 November 2012 Last updated at 23:15 GMT

As Lord Justice Leveson prepares to publish his report into the culture, standards and ethics of the press, victims of unscrupulous media coverage have been meeting the prime minister and other party leaders.

The Hacked Off campaign said it had received "encouraging" responses, but the London Mayor Boris Johnson has warned MPs not to support any plans to regulate the media.

Nick Robinson reports.