For a naturalised Australian citizen, Stern Hu seems to have spent very little time actually living in his new home land. Mr Hu is a native of Tianjin who has worked for Rio Tinto in Beijing and Shanghai since the mid 1990s. And if he thought that carrying an Australian passport would save him from arbitrary action by a communist regime he was clearly well and truly mistaken.
In fact I hear suggestions that the Australian document is a real hindrance rather than a help with the authoritarians of Beijing believing that overseas citizenship is one of the major benefits given to Chinese providers of help and information. Slightly lower down the list of common rewards apparently is free tuition in Australia for children.