I didn't mean to make equivocations to any modern or historically violent regimes, though perhaps I was too flippant in using the term "secret police". I'm well aware that Tunisia (now and even years ago) has a much stronger civil society than most if not all of the Arab world, and in many respects comparable to Europe. It's no coincidence that it was the first (and arguably only) country to transition to democracy during the Arab Spring.
My point was just that if you're worried about the consequences of your country slipping back into authoritarianism, obviously you'll want to 1) be more prudent about what you say, and 2) be more rigorous in practicing trust & verify--both regarding the trustworthiness of the person purporting to speak with you, and that they're actually that person, much like if a bank or journalist contacted me. (I always try to verify both, with varying degrees of rigor depending on consequences. And I'll never provide personal information, confidential or otherwise, over an incoming phone call; I always ask for a callback number that I can verify.)
Suffice it to say, even in robust democracies you can be interrogated by police for making innocuous statements online. A couple Muslim friends experienced exactly that (repeatedly) in the aftermath of 9/11. That was wrong and harmful, but there was never any threat or perceived threat of physical harm. I didn't mean to denigrate Tunisia by suggesting it would be so quick to descend into a thoroughly repressive and violent dictatorship. The world is much more complex than as portrayed in Hollywood and pulp history.
To the extent my comment made a caricature of Tunisia, I apologize.
And there is no secret police in Tunisia for now. The current plot is quite amateurish but given history (Cuba/Fidel) anything is possible.