The meanings of Privileged language

I will be quick and to the point. I am very curious about the language not only society chooses to use but that of the media. I can remember seeing many protests or picket lines around Nova Scotia over the years. As a matter of fact, from what I recall, quite a number of them have been public civil servants (you know, the whole" I pay your salary" jobs..trust me, I can not stand this saying either). Now the issue I have here is the language used to describe these picket lines...just that PICKET LINE, or even more rebellious, how about protest ( a little more powerful sounding that demonstration). How many of us have heard of these picket lines not letting anyone through? no vehicles, no bodies. How many of us have heard of folks getting a bit, shall we say, roughed up by these lines? How many of us have heard the tongue lashings these folks throw out on these picket lines. So my question is, why do we chose such soft language to describe these lines, but when the Nisichawayasihk Cree Nation near Nelson House, Manitoba, forms a picket line, WHICH, keep in mind is blocking vehicles only and letting people through, the Canadian Broadcasting Corporation, aka the CBC, runs the headline "Natives blockade norther Manitoba dam project"?? BLOCKADE?? That sounds more like a demonstration to me.
By the way, if you are wondering what exactly are they demonstrating against, no, it is not that it is sacred ground. No, it is not over land that was stolen. It is over promised jobs. Now, for those of you who say they are protesting over jobs that were promised to Natives...WRONG..they are protesting over jobs that were promised to LOCALS, it just so happens that locals in this situation happen to be from a First Nations community. Just the same as if the dam was being built in Guysborough (or fill in the blank with any small town Canada or US name) and most of the jobs were promised to said town. Now, if said town were upset and decided to demonstrate against what was promised, I am damn sure the CBC would not use the word "blockade" in the headline...CBC...smarten up, or is that too much to ask, after all, I pay your salary