The grilling of prime minister David Cameron is going on as I type this. For live video, go here. So far, he seems to have avoided any incriminating evidence that he had any role in rigging Murdoch's bid for BSkyB. But by far the most interesting and damaging news is raw evidence of an intensely close relationship between Rebekah Brooks, the queen of phone-hacking, and Cameron, desperate for Murdoch's support before the last election. Lesson of the day - texts are dangerous:

Brooks's text, written the day before Cameron was due to address the Conservative conference, said: "I am so rooting for you tomorrow not just as proud friend but because professional we're definitely in this together!" Sent a week after the Sun had come out in support of the party, Brooks went on to encourage the political leader by saying: "Speech of your life? Yes he Cam!"