I'd be interested in the ethnicity of the folks in the pictures that were found. Something tells me they weren't WASPs or WASAs.
Or aborigines.
What is a WASA, please?
Don't know. Australia has a large Arab/Muslim community. They've had problems with both converts (David Hicks- the "Australian Taliban" and a Frenchman named Willie Brigitte) and Arab or Indonesian Muslim extremists.
Also you have had some far-right types like our Montana Freemen.
BTW, the Australian outback would be a good place for terrorist training camps, given the amount of empty space. Aum Shinrikyo (the Japanese cult that carried out a chemical attack in the Tokyo subway) had land there where they seem to have tested WMD's.