Joan E. Spero, 67, an adjunct research scholar at Columbia University's School of International and Public Affairs since November 2010.  Ms. Spero is also a member of the board of directors of  International Business Machines Corporation.  Ms. Spero previously served as Undersecretary of State for Economic, Business and Agricultural Affairs of the U.S. Department of State, from 1993 until 1996, and as Ambassador to the United Nations for Economic and Social Affairs of the U.S. Department of State, from 1980 until 1981.  Ms. Spero held various leadership positions at American Express Company from 1981 until 1993, she served as President of the Doris Duke Charitable Foundation from 1997 to 2008, and she was a visiting scholar at the Foundation Center from 2009 until 2010.  Additionally, during the past five years, Ms. Spero served on the board of directors of ING Groep N.V. and First Data Corporation.  Ms. Spero is a trustee of the Morgridge Institute  for Research, the International Center for Transitional Justice, and the Wisconsin Alumni Research Foundation, and a trustee (emeritus) of Columbia University, Amherst College and the Council on Foreign Relations.  Director since June 10, 2001.