It is sometimes said that the media is accountable daily through the choice of readers and viewers. That is true up to a point. But the reality is that the viewers or readers have no objective yardstick to measure what they are being told. In every other walk of life in our society that exercises power, there are external forms of accountability, not least through the media itself. So it is true politicians are accountable through the ballot box every few years. But they are also profoundly accountable, daily, through the media, which is why a free press is so important.