Their new policy changes make it clear that they are engaged in extreme levels of sharing, from links, videos, photo and this could be huge to anyone who wants to target users.
Frankly, we all know that people wont really read the policy – but that is no excuse. If you sign up to Facebook, you need to accept that your data will be shared, and you have no expectation of privacy. For goodness sake, it’s a social network, specifically made for sharing of information. If you wanted privacy, you shouldn’t have joined in the first place.