Plot: An MP has defied the judiciary today by naming Ryan Giggs as the married footballer at the centre of a media gagging order. David Cameron has said that banning newspapers from naming such stars while the information was widely available on the internet was both "unsustainable" and "unfair" - but what is the answer? Are new laws required? Or can the press be trusted to regulate itself? Tonight we hear from the head of the Press Complaints Commission, the MP at the centre of the row, and a lawyer who has secured injunctions in the past