  ==Major Revision is Planned==  A group of retail loss prevention professionals got together and crafted a major revision to this article. (Pictures and charts not yet introduced.)  It is in its final stages of preparation.  This is an open invitation to comment on the existing article.  Please refrain from editing the article itself.  The link is: .  Please visit the article, read it, and help us talk about what's written.  Your input is important and valued. (  )