January 21, 2010, Atlanta GA: Presentation addressing "President Obama’s Vision,"delivered to the Atlanta Consultation III: Fulfilling the NPT, MPI conference at the Carter Center.
January 6, 2010, New York, NY: "Nuclear Disarmament, the Road Ahead," delivered at the EastWest Institute roundtable on Prioritizing the Disarmament Agenda.
2009, Preventing Catastrophe: The Use and Misuse of Intelligence in Efforts to Halt the Proliferation and Use of Weapons of Mass Destruction, co-authored with Keith Hansen, Stanford University Press.