In an age when international terrorism poses a threat to peace and stability, the use of not only nuclear, but also biological and chemical weapons are important topics for classroom discussion. In this article, the author explores four approaches to teaching this topic. Examining a controversial topic involves the evaluation of values, the use of critical thinking, and can simply make history come alive. The activities outlined in this article involve some risks, not only because of the sensitive nature of the issues, but also because the teacher assumes an important but subordinate role in the learning process. The instructor does not control the class, but rather guides the students, allowing them to arrive at their own conclusions. In doing so, they are encouraged to develop the type of critical analysis necessary for participating in a democracy. The article also asserts the belief that students develop self-confidence and leadership ability through the use of simulations, role-plays, and similar activities. (Contains 2 notes.)