From the Guardian, Tuesday 19th August 2014.

Eileen Brown, lead consultant at Amastra, a social media strategy agency, says: “When we signed up, we gave Facebook information. In submitting this, you have specifically given Facebook permission to use any content that you post, and it can do whatever it wants with the information. There’s always a risk.”

Background information: Facebook played with our emotions in data experiment. So what?|ZDNet . July 3rd 2014