Because conspiracy theories are never true? Or just this "kind" of conspiracy theory? You object to the idea that a democracy can't turn into a place where the government is dangerous to its citizens? Have you heard about http://en.wikipedia.org/wiki/Final_Solution?
With all the myriad of documented ways that rich people have worked with other rich people to fuck us all over, I'm amazed that anyone can write that there is no conspiracy. The revolving door between government and industry, between regulators and the regulated, the money channeled to the police. You need to do some more research.
I visited that link just to see and found that it was posted as an HN article a while back. Your characterization is completely wrong. In that video, a lawyer explains how a person's words can be used against them by the police even if that person is innocent. In fact, innocent people have the most to lose if they come under police suspicion.
Please note that I do not hate cops by any means. In fact, all of the ones I have known have been great. But I've never taken a ride in the wrong side of a police car, either. Perhaps you should read this: http://www.innocenceproject.org/fix/Priority-Issues.php