It seems to me that the only difference between Australians and Iranians in this regard is that Australia is part of the white Anglophone diaspora. It is also part of the Five Eyes intelligence program, which groups the US, Canada, the UK, New Zealand and Australia (hmm, I wonder what they have in common)? Race is so central to US politics that it even comes into nuclear policy!

Source: Is US-Australia Nuclear Sub Deal a Proliferation Danger, and does it Justify Iran’s Civilian Enrichment Program?