This paper is an expansion on Richard Menta's SC Magazine article from last June titled "A Need to Know". That is the actual starting point for this topic. The article is on SC Mags Web site at: http://www.scmagazine.com/features/index.cfm?fuseaction=FeatureDetails&newsUID=3cdf7a84-e2d6-46e4-8607-1afac6cdfce5&newsType=Features