As climate negotiators prepare for a further sleepless night of talks, we examine the chances of a significant deal, and Lord Stern, a former advisor to the government on climate change tells Shaun Ley us that it's not yet clear how Britain will meet it's existing carbon targets. Investigating the hacking of mobile phones by journalists has cost 23 million pounds, resulted in twelve people being charged, nine of them being convicted, and lasted four years. Now it's all over. We examine why the Crown Prosecution Service is winding up the investigation, and hear from the press standards campaign Hacked Off The Schools Inspectorate, Ofsted, is setting up a taskforce to tackle unregistered schools in England, because of fears that some have a narrow Islamic focus - or operate in unsafe conditions. We hear why. As Italy prepares to host talks this weekend aimed at getting a political settlement in Libya, we'll be hearing how the group that calls itself Islamic State is trying to fill the political vacuum. And though King Alfred was clumsy with the cakes, coins found a few weeks ago suggest he was also a slick propagandist. The historian Michael Wood joins me to discuss what we've learnt.