Since fbook has come out with it's new look, it has made it much more difficult to remove it's access to Your Personal Data. It is not too difficult, to go in and deny their face recognition software, but who in their right mind would trust fbook? The good thing is that when it goes to court, and they have violated your denial of permission, you will have very strong evidence to present! It is never wise to have fbook installed both on your home computer and your phone! They can combine data from both sources, and sell to the highest bidder, as usual!