By Amy Zalman, Ph.D., About.com
Terrorism is the threat or use of violence against civilians to draw attention to an issue. Those searching for the causes of terrorism -why this tactic would be selected, and in what circumstances- approach the phenomenon in different ways. Some see it as an independent phenomenon, while others view it as one tactic in a larger strategy. Some seek to understand what makes an individual choose terrorism, while others look at it at the level of a group.