Bunn, MatthewWier, Anthony2017-02-102006Bunn, Matthew and Anthony Wier. 2006. Securing the Bomb 2006. Project on Managing the Atom, Belfer Center for Science and International Affairs, Harvard Kennedy School, Harvard University. Nuclear Threat Initiative.http://nrs.harvard.edu/urn-3:HUL.InstRepos:30209095Urgent actions are needed to prevent a nuclear 9/11. Terrorists are actively seeking nuclear weapons and the materials to make them. With the needed nuclear materials in hand, making at least a crude nuclear bomb, capable of turning the heart of any modern city into a smoking ruin, is potentially within the capabilities of a sophisticated terrorist group. Yet scores of sites where the essential ingredients of nuclear weapons exist, in dozens of countries around the world, are clearly not well enough secured to defeat the kinds of threats that terrorists and criminals have demonstrated they can pose.en-USResearch Paper or Report2016-04-1920062017-02-10