Does the Air Force use aircraft to harass certain people?

(in the US) Leaving aside the fact that the law prohibits the CIA from conducting domestic spying operations against US citizens, a realistic answer is that no one would probably ever know.

If the question refers to on-going combat operation in the Middle East where drones are used for surveillance and strikes against enemy targets and personnel, it is probably a good bet that the CIA is involved in some capacity to a greater or lesser extent.