Cyborgs, do they silently walk among us?

For a few classes worth, we watched Star Trek to see the possibilities for future technologies to go wrong, specifically the Borg. The Borg are cyborgs, part human and part machine. There was no real explanation as to how they came to be, just that they were there and they were a threat. If there wasn't a specific project executed to make the Borg from scratch (which we don't exactly know, just in theory), that means that Borg accumilated slowly under the radar.

Star Trek is just a fiction series, but it makes one think about our future. In a more recent class we talked about a philosopher named Winner, who threw out the idea that we should justify technology before we mass produce it, and the more dependent we "could" become of it, the less worthy of technology it would become. The problem with this is that people of today keep want new technology, they accept it with open arms, not known the consequences that may become of it. Are we slowly working towards a Star Trek type of life style, is the possiblity of the Borg being created in the future because any and every technology is being welcomed into our society without proper analysis of dependency? Just the thought of a Borg-like species in today's life is a nightmare.

The Borg were part human, part machine, a cyborg. We are often scared of the thought of cyborgs living among us, but don't they already to some extent? Prosthetics were created to help those people who were in accidents to help them live normally again. But with the prosthetic, is this really living normally? Prosthetics keep getting more and more advanced, to the point that they are even implanting chips in the users brains so that they can move these mechanical body parts with just thought, almost like a real arm or leg. Do people with prosthetics not match the description of a cyborg? Is this a bad thing? I personally don't think so, but if they keep improving this technology, then maybe it could become a problem. Is the Borg a possibility if this technology is left unmonitored? Or is this a technology that should not be worried about?