Here is the scenario; it is taking place within the US. A group of 12 American-born terrorists have acquired explosive materials. They have rigged 12 cars to explode. There plan is to drive these cars to different populated areas (buildings, malls, planned rallies, etc.) and blow up themselves along with everyone in about a 50-yard radius. The government is alerted to these plans including the route, target, and timing. Unfortunately, they were not able to stop the terrorists before they began the operation. Limited in time, lacking ground military assets nearby, and fearing the mass death of civilian law enforcement attempts to capture or stop the terrorist midway; the President sends drones from a nearby facility to kill the terrorists before they reach their destinations. All attempts are made to hit the cars while on isolated roadways.