Prime Minister Anthony Albanese has said Iran's Supreme Leader Ali Khamenei "will not be mourned" as he doubled down on Australia's support for the US to stop Iran from obtaining a nuclear weapon.Speaking at a press conference earlier today, Alabese said Australia "stands with the brave people of Iran in their struggle against what is an oppressive regime"."I understand this is a very difficult time for the tens of thousands of Australians with loved ones in the Middle East.