use of guerilla war tactics against the South African Government) may change as conditions (leadership, world opinion, crises, historical accounts, etc.) change. Thus, the current and historical context of extremist acts shapes our view of them. Power differences also matter when defining extremism. When in conflict, the activities of members of low power groups tend to be viewed as more extreme than similar activities committed by members of groups advocating the status quo.

In addition, extreme acts are more likely to be employed by