This section addresses some of the most frequently asked questions, such as: what types of nuclear weapons exist? What are the effects of a nuclear explosion? Which countries possess nuclear weapons?

• Weapons Basics
• What is Nuclear Fission?
• What is Nuclear Fusion?
• The Effects of a Nuclear Weapon on a Target
• The Neutron Bomb
• Nuclear Materials
• Nuclear Stockpiles
• Cobalt Bombs
• An Agenda for the Nuclear Weapons Program, February 12, 2003