Anthony J. Principi has served as a director of Perot Systems since December 2005. Mr. Principi has served as Chairman of QTC Management, Inc. since November 2005, and as Senior Vice President of Pfizer, Inc. since March 2006. Mr. Principi has also served as a director and member of the audit committee of Mutual of Omaha Insurance Company since March 2005. From March 2005 until September 2005, Mr. Principi served as Chairman of the Defense Base Closure and Realignment Commission. From January 2001 until January 2005, Mr. Principi was Secretary of the United States Department of Veterans Affairs. Age 63.