Define terrorism - Easier said than done

The first chapter of "Understanding Terrorism" discusses the definition of terrorism. Much like genocide, it is difficult to draw the line of terrorism. But what makes it so difficult? Each nation or group has a different history of terrorism. Past events that are considered acts of terrorism pose as pictures and models for the future. Also, each group or nation has a very different culture from another on the other side of the world. In the United States, we consider suicide unacceptable. Some cultures use suicide as a weapon. They are brought up to believe that this is an acceptable and worth while act. One person's terrorist is another person's freedom fighter.