MacArthur President Robert Gallucci gives the keynote address at the Fissile Materials Working Group Summit, "Next Generation Nuclear Security: Meeting the Global Challenge." Introduction by Alexandra Toma, program director of the Connect U.S. Fund & co-chair of the Fissile Materials Working Group.

This NGO summit sought to highlight the importance of preventing nuclear terrorism by improving nuclear material security. The event occurred one day before the Obama Administration's Nuclear Security Summit.