It goes far, far beyond even what you're thinking: http://www.dailymail.co.uk/sciencetech/article-2187801/Were-watching-The-camera-recognise-Facebook-picture-time-walk-shop.html
Facebook is putting their own cameras in public with built in facial recognition software. They will track everywhere you go, what you do while you're there, what you buy, what you eat, what you look at and don't buy. Every single thing you do will be logged in their databases, and then sold to... well... pretty much everyone. How much do you want to bet their biggest customer will be the federal government?
It appears that Orwell was off by about 30 years when he wrote 1984.
The article explicitly says that Facebook did not develop the system and that it is simply an app that uses Facebook's APIs. There's no need for you to mislead people by saying that Facebook is installing their own cameras.
Mater artium necessitas. [Necessity is the mother of invention].