Facebook saves deleted photos

Once you delete a picture on facebook, it is saved for a few years.  I think this can be a good thing because it teaches kids not to post innapropriate things on facebook.  Everyone can see what you post, and once it is deleted, it is not gone.  This can also be a bad thing because if you post innapropriate things on facebook, it will always be there if you delete it. But you shouldn't post bad things because everyone can see it.