I can't understand the point behind this article. There are already so many (more) invisible ways of recording a person in public than Google's Glasses. "But I

I can't understand the point behind this article. There are already so many (more) invisible ways of recording a person in public than Google's Glasses. "But I don't want to be recorded!"; Fine, that's a valid point to make, but 99,9% of cases no one even wants to record you. "But someone might hack in my Glasses and then record without me knowing"; Again valid concern, but no one wants to hack into your Glasses to see what's happening around you. I'm not saying we should just ignore security completely, but saying that Glass are just bad for privacy is kind a over kill in my opinion.