Canadian General David Fraser, fmr NATO Commander in Afghanistan on Iran, U.S.&NATO. Dennis Horak Canada's former leading diplomat in Iran on Iran firing deadly missile at Ukraine airliner with 57 Canadians on board. Col Peter Mansoor, fmr exec officer to Gen David Petraeus in Iraq on Iran/U.S. crisis. Prof Paul Arbon, Flinders Univ in Sydney, AU, on wildfires and training AU emergency services. Fmr Airline captain Raymond Hall on why Iran still not truthful about shooting down Ukraine plane.