The news business has been changing even before that runner burst through the door, breathless to deliver her earth-shattering news. Nanette Asimov was not in the business that far back, but has been the mainstay of the Education Beat for the San Francisco Chronicle for over twenty years.  Her focus is on state and national issues and has recently begun investigating special education and autism.  Her stories are insightful, informative, and occasionally controversial, as her words describe a vision that is uncomfortable for some.  Speaking with Nanette gives us insight to the person we meet so frequently at our breakfast table.  Nanette Asimov- The Observant Witness.