Founder and CEO, DonorsChoose.org
Managing director, Rockefeller Foundation and Former Senior Editor, The Economist
Academic and Author Specializing in the Middle East and Islamic World, Former Senior Advisor to US Representative to Afghanistan
Columbia University Business Professor & Bestselling Author of "The Art of Choosing"
Philosopher, Professor, Political Activist, Author of "Race Matters"
Author, Counselor & William Davidson Distinguished Fellow at The Washington Institute; Former Special Assistant to President Obama
Leading Geo-Strategist & Author
Senior Curator at the Museum of Modern Art in the Department of Architecture and Design