Mr. Callahan has served as a member of our Board of Directors since March 2003. Mr. Callahan was an audit and business advisory partner of Arthur Andersen LLP, an independent public accounting firm, from 1975 to March 2000. While at Arthur Andersen, Mr. Callahan served clients in a number of industries, including manufacturing and mining businesses, electric and gas utilities and independent power producers. Mr. Callahan has been retired since March 2000. Mr. Callahan has been a member of various community service-related boards and currently serves on the Board of Trustees of the Massachusetts Department of Mental Retardation's Hogan Regional Center and is Trustee Emeriti of Bates College. Mr. Callahan is a graduate of Bates College and holds a Masters of Business Administration from the Graduate School of Management of Rutgers University. |