Prince Harry has been on a collision course with the tabloid press for years - and finally he is pressing charges of phone hacking. He has said that changing the media landscape is his ‘life's work’, and this gladiatorial courtroom encounter could be one of his own defining moments. He has a single-minded determination to keep going without settling and is rich enough to take the financial hit if he loses. He has found this wasn’t like taking questions from Oprah Winfrey in a celebrity interview. He had a hostile encounter with a highly-skilled cross-examiner armed with a battery of techniques to undermine credibility. Giving evidence is daunting.