David Brooks, Author and New York Times columnist
Doris Kearns Goodwin, Author, "Team of Rivals: Leadership Lessons from Abraham Lincoln"
David McCullough, Pulitzer prize-winning Historian
Peggy Noonan, Author and Wall Street Journal columnist
Andrew Ross Sorkin, Author, Too Big to Fail
Dr. Francis Collins, Director National Institutes of Health and Author, "The Language of God"
Cynthia Cooper, WorldCom Whistle Blower, 2002 Time Person of the Year
Alex Counts, President and CEO Grameen Foundation and Author, "Small Loans, Big Dreams"
Janet L. Robinson, CEO, The New York Times Publishing Co. (ret.)
Dr. Shirin Ebadi, Nobel Peace Prize-Winning Iranian Activist and Lawyer
Alan Gross, U.S. Humanitarian Aid Worker
Samantha Power, Former U.S. Ambassador to the United Nations
Major Russell Lewis MC (PARA), Parachute Regiment, British Army
General Anthony Zinni, United States Marine Corps General (ret.) and former Commander in Chief of the United States Central Command
Politics and National Perspectives
R. Nicholas Burns ’78, Former Under Secretary of State and Author, "America's Challenge of Global Leadership in the 21st Century"
Edward Davis, 40th Police Commissioner of Boston
Adrian Fenty, Former Mayor, Washington D.C.
Eric Holder, Former United States Attorney General (2009-2015)
Karen Hughes, Former Counselor to President George W. Bush and Under Secretary of State for Public Diplomacy and Public Affairs
Jon Huntsman, Former two-term Governor of Utah, U.S. Ambassador to China and Singapore
John King, CNN Chief National Correspondent
Thomas Menino, Former Mayor of Boston
Deval L. Patrick, Former Governor of Massachusetts
Governor Tom Ridge, First Office of Homeland Security Advisor
Felipe Calderón, Former President of Mexico
FW de Klerk, Former President of South Africa, Nobel Peace Prize Winner
Julia Gillard, Former Prime Minister of Australia
George Papandreou, Former Prime Minister of Greece, Member of Greek Parliament, and President of Socialist International
Mary Robinson, Former President of Ireland, Former UN High Commissioner for Human Rights