The One Nation leader, Pauline Hanson, has been secretly recorded questioning whether the 1996 Port Arthur massacre, where a gunman shot and killed 35 people in Tasmania, was a government conspiracy. The covertly recorded footage is in the second part of an explosive al-Jazeera documentary, How to Sell a Massacre, which also reveals senior One Nation staff being advised by the US gun lobby, the National Rifle Association, to exploit stories about so-called 'African gangs' to make the case for gun ownership in Australia







