Quote Originally Posted by RickyR View Post
Have mentioned this before, but in my line of work have seen people fired over facebook related incidents. It's far too dangerous, and far too much information. The press seem to be able to drag out all the photos and status reports for articles... scary
I don't know a great deal about Facebook security I don't use the site, but it is possible that initial poor security on the part of individuals results in data getting into the google cache from where it is more or less impossible to remove it. (I mean the google page history cache not something local to your own PC).

I would guess they are using that kind of method to retrieve historic data.