Di Natale talks preferences and key Greens policies as election campaign begins. Ciobo defends Turnbull government's economic record with Queensland in election spotlight. How social media will be used in the 2016 election. Federal politics: election 2016 starts in Queensland. Kenya to close all refugee camps. Sport: Olympic funding and the Invictus games. North Korea Congress: foreign journalists expelled. Infectious diseases - how vulnerable are you?