This manuscript focuses on the present threat posed by terrorist and insurgent use of unmanned aerial vehicles (UAVs) as well as the associated future threat potentials identified. The work presents a counterintuitive analysis in the sense that armed drones are typically viewed as a component of America's conventional warfighting prowess-not a technology that would be used against U.S. troops deployed overseas or against civilians back home. Utilizing a red teaming approach, the author, Dr. Robert J. Bunker, a past Minerva Chair at our institution, investigates the emerging threat of such UAV use. His unique analysis and creative approach, especially when related to the threat scenario variants generated, make for very informative reading. The work is divided into an introduction to the topical area, a UAV historical overview and discussion of present use by the U.S. military, a chronological narrative of terrorist and insurgent UAV use...