In a sense, the Ku Klux Klan commit terrorism based on the definition of terrorism. Terrorism is when someone or a group of people do harm or try to do harm in order to create fear in large groups of people. They do this for political reasons or money. Sometimes, they do this for religious reasons. The Ku Klux Klan claim to be Christians or at one time they did.
So, the KKK are responsible for terrorist activities because they commit acts of violence in order to intimidate and harass other people. The news does not display the acts of violence as much today about the KKK than in the past. All that is broadcast concerning the KKK’s actions include their protests and riots to demonstrate against an issue.