The Panel with Catherine Robertson and Emma Espiner (Part 2)

People are committing crimes and displaying their greatest pain and suffering on social media. What the Panelists Catherine Robertson and Emma Espiner want to talk about. A new biography about Barack Obama exposes the former US president's drug taking, relationships and infidelity. Infectious diseases expert Michael Baker of the University of Otago explains why cold and flu medicines don't work. A convicted murderer wants to be able to donate sperm so he can father a child. The Imperial tobacco company is looking at growing the market for caffeine energy supplements.