Yep. The event in Egypt that this article opened with is an example of a state of exception, and it has been used effectively by rulers for a long time. Not just autocrats, but, even more importantly, by elected members of a government with checks and balances, as a way to bypass those checks and balances. The phrase was coined by a Nazi philosopher who proceeded to lay out the groundwork for the subversion of a constitutional parliament, which then worked effectively. It has been picked up by others like Agamben to analyze similar things throughout history (the Patriot Act for one).

It's fundamentally not a matter of technology.