When someone adds you as a friend on Facebook, their profile should be viewable as though the two of you were friends already, so you can verify that they actually know you.

It would only work one way, too. So for example, say Emile Deschampes (made up name) adds me on Facebook, I can then go to his profile and look at his pictures/info/friend list as though we're already Facebook friends to check for mutual friends, interests, etc. This would not work the other way around though, he wouldn't be able to see my full profile until I accept his request.

My logic is thus: If you want to friend request me, I should be allowed to be creepy for the sake of my own security.