The control of American society through the use of government sponsored and manufactured terrorism.
Though obviously not all branches of government are involved, it is well proven that there are cliques of politicians, congressional aides, and operatives working at the behest of these persons, organizing and executing these fake or staged attacks.
The motivation is not just social control, but profits. The fear generated by these fake attacks is used to justify almost limitless spending on the part of government. The resultant wars against framed nations or groups, is also extremely profitable for corporations involved in 'security', weapons, and warfare.