When you have half of Caironese in slums, when you don't have clean water, when you don't have a sewer system, when you don't have electricity, and o… - Mohamed ElBaradei

We must abandon the unworkable notion that it is morally reprehensible for some countries to pursue weapons of mass destruction yet morally acceptable for others to rely on them for security — and indeed to continue to refine their capacities and postulate plans for their use. Similarly, we must abandon the traditional approach of defining security in terms of boundaries — city walls, border patrols, racial and religious groupings. The global community has become irreversibly interdependent, with the constant movement of people, ideas, goods and resources. In such a world, we must combat terrorism with an infectious security culture that crosses borders — an inclusive approach to security based on solidarity and the value of human life. In such a world, weapons of mass destruction have no place.

Nuclear proliferation is on the rise. Equipment, material and training were once largely inaccessible. Today, however, there is a sophisticated worldwide network that can deliver systems for producing material usable in weapons. The demand clearly exists: countries remain interested in the illicit acquisition of weapons of mass destruction. If we sit idly by, this trend will continue. Countries that perceive themselves to be vulnerable can be expected to try to redress that vulnerability — and in some cases they will pursue clandestine weapons programs. The supply network will grow, making it easier to acquire nuclear weapon expertise and materials. Eventually, inevitably, terrorists will gain access to such materials and technology, if not actual weapons. If the world does not change course, we risk self-destruction.

A recent United Nations High-Level Panel identified five categories of threats that we face:
1. Poverty, Infectious Disease, and Environmental Degradation;
2. Armed Conflict — both within and among states;
3. Organized Crime;
4. Terrorism; and
5. Weapons of Mass Destruction.
These are all 'threats without borders' — where traditional notions of national security have become obsolete. We cannot respond to these threats by building more walls, developing bigger weapons, or dispatching more troops. Quite to the contrary. By their very nature, these security threats require primarily multinational cooperation.