I think when he stated the needle and haystack thing he just was indicating it will be hard to locate one person in such a large area to look. I have a lot of photos from early on and I do know who some of them are but trying to find the other people I have pictures of would be very difficult. I wouldn't know where to start even. I always start with asking the person I get them from what they know to make it possible to have a direction to go.