Controversy of the Term:
The application "terrorist" is therefore always deliberately discussed.
Attempts at defining the concept invariably arouse debate because rival definitions may be employed with a view to including the actions of certain parties, and excluding others. Additionally, each party might still subjectively claim a legitimate basis for employing violence in pursuit of their own political cause or aim. (Wikipedia)
In short, there may be legitimate reasons for the rebellion of certain groups of people. Many people are often confused of the reasons for specific actions, however the idea of a "terrorist" is frightening. What one perceives as a terrorist action, another may see opposite depending on the cause and ethic morals.