Facebook Users Say They're Losing Privacy In The Fine Print

Some Facebook users are being caught off guard, accusing the company of manipulating the messages they receive.

It's all in the fine print, but most users skip over it.

Adi Kamtar is an activist who is trying to hold the company accountable, "They're basically turning hundreds of thousands of users into guinea pigs, which we apparently agreed to when we signed up for the service," Kamtar says.

In 2012, Facebook adjusted the news feeds of 700,000 members to try to see if happy posts made them sadder or happier. That's based on the premise that people get depressed watching other people's Kodak moments on screen. The problem is that Facebook did not ask for permission to study subjects, they just gleaned it from the Terms of Service page we all zoom past.

"They shouldn't be doing that at all and I believe it's wrong to do so and, you know, happiness is personal," says user Kodous Moutiarou.

"A lot of times when you're doing this sort of psychological research, you do need informed consent from the subject and by clicking on the terms were we really giving informed consent?" Kamtar says.

Some people merely shrugged their shoulders at the fact that this created emotional turmoil. "With all marketing and advertising that's going around, I guess I'm not surprised, probably helps them tailor their ads a little better," says Peter Bronchato who uses facebook. Another Facebook user Courtney McGovern says, "You can't really stop 'em, but I don't think they should be able to do it."

Facebook has collected the data of more than a billion users worldwide, doing so through the 9,000 word Service Agreement.

{Report from KPIX}