Not necessarily. There were secret trials and jailings of Australian whistleblowers (Witness J and K), and we only found out about them almost by accident. The government went after the lawyer in a way reminiscent of the guy in the article.

Now that we know the Aussie government does this kind of thing, how many other cases are there that we don't know about? US black sites around the world? Everyone knows about Guantánamo, but how many others are there that don't make the news?