Antibiotics are chemicals that kill bacteria but leave us unharmed. However, bacteria are evolving so that our drugs no longer kill them. If this trend continues, the treatable are going to become untreatable... How serious would this scenario be, though? We'll be putting the problem under the microscope this week. Plus in the news, the UK's new Snooper's Charter, the man modelling vascular diseases in a dish, and what happens in your brain when you talk to God...