Daniel is president of The Harry Frank Guggenheim Foundation, a leader in creating and disseminating knowledge on violence in its many forms, including war, crime and human aggression. Guggenheim research and programs seek to illuminate the nature of, and responses to, issues of violence in the United States and internationally. Daniel previously served as vice president and chief program officer of the Vera Institute of Justice, a non-governmental organization working to improve systems of justice. There he was responsible for developing and overseeing the institute's work on victimization, mass incarceration, racial justice, and other areas. He has written and testified widely on crime and justice issues. Daniel is a graduate of Northwestern University School of Law, Harvard Divinity School, and the School of Foreign Service at Georgetown University. Daniel is a Fellow of Salzburg Global Seminar.