It appears that Garrett had written to Rudd on 4 separate occasions outlining the risks and his concerns. He could have stopped the program or resigned, same thing I suppose, either way he would not have remained Minister. It is Rudd's responses to Garrett's letters that would be the real interesting part.
Cheers
Country Lad
I wouldn't be at all surprised if Rudd's advisers ensured they never reached him. Kind of like Howard and children overboard.