Now you see them:
"The US is likely to ask Australia for co-operation in an extended campaign, beyond UN sanctions, to apply pressure on Iran to give up its nuclear weapons ambitions." (Australia 'key ally' for the US on Iran, Greg Sheridan, The Australian, 8/5/10 - p 10)
Now you don't:
"Australia will almost certainly be asked by the Obama administration to levy extra sanctions against Iran, beyond those soon to be mandated by the UN Security Council, in a last-ditch effort to stop Tehran going nuclear." (White House looks to Rudd to go harder on Tehran, Greg Sheridan, The Australian, 8/5/10 - p 23)
Ah, those bloody Iranian WMDs - almost as elusive as Saddam's.