[wmeredith]

Have you heard of the NSA? I think it's pretty safe to say at this point that NOTHING online is private.

[judk]

Accidentally upvoted. NSA getting everything is not the same as everyone getting everything. NSA doesn't share with my mom.

[lazyjones]

Privacy doesn't mean "not everyone is getting everything". If FB shares my secrets with anyone without my consent, they're violoating my privacy. They don't need to make them available to everyone for that.

[Crito]

..unless they decide that you are a "radical", in which case they very well might leak it to your family, friends, and acquaintances in an attempt to distance them from you.

[nilved]

One of my good friends is married to an NSA employee, so I can tell you (almost) first-hand that they would if they knew her.