What should the Australian Government do about China detaining Australians for national security reasons?

Abstract

There are currently two Australians detained in China on national security grounds: Yang Hengjun and Cheng Lei. Both of them were arrested for national security reasons by Chinese authorities. How did bilateral friction play into their detention? What message was Beijing trying to send? While the answers to these questions remain somewhat unclear and debated, we asked three observers of Australia-China relations for their thoughts on how the Australian Government should approach such cases.