Homeland security exists to protect the base projecting global drone power

Evidence

To the principle of the nonexposure of lives at the scene of hostilities is added the principle of making the base of operations secure: “the US homeland must remain a secure base from which the Air Force can globally project power”—which means “ensuring the protection of US facilities and infrastructures used for power projection.” — Grégoire Chamayou, A Theory of the Drone, 888