Facebook's recent changes to personal security settings are good, but long overdue!

How many times have you seen a friend of yours in a photo album of someone you've never seen before? I could never understand why it let me do that and as a result I stopped posting my personal photos, but now I guess I can feel a little better about that.
My only complaint is how long it took them to get these security settings implemented! A company this size, with as many engineers as they have, should've finished this years ago!