In the United States, terrorism is defined as the systematic or threatened use of violence in order to create a climate of fear with the goal of intimidating a population or government and thereby spurring political, religious, or ideological change. This article serves as a list and a compilation of acts of terrorism, attempts to commit acts of terrorism, and other such items which pertain to terrorist activities which are engaged in by non-state actors or spies who are acting in the interests of state actors or persons who are acting without the approval of foreign governments within the domestic borders of the United States.