An interesting "cheap, dirty & dangerous" mode of attack is loitering munitions from commodity FPV drones. Their capabilities have been demonstrated in current

An interesting "cheap, dirty & dangerous" mode of attack is loitering munitions from commodity FPV drones. Their capabilities have been demonstrated in current Russian invasion of Ukraine, and if any infiltrator can get in a few miles of the target, a "suicide drone" with a few pounds of explosives and shrapnel can be very difficult to defend against.