It's not public. When I go to Facebook.com I'm greeted by a login page. When I go to main street I uh just am on main street. I'm not greeted by a bouncer. On

It's not public. When I go to Facebook.com I'm greeted by a login page. When I go to main street I uh just am on main street. I'm not greeted by a bouncer. One can certainly argue that private companies can do what they want but to claim data a private company holds is public is just wrong. FaceBook is welcome to have a policy of sharing data with advertisers (or the government). It's just not public.