Some folks are Georgia Tech are working on "ethical governor" technology designed to control the use of lethal force by unmanned, autonomous drones without any human intervention.
Clearly, this has some implications:
The 600 Series had rubber skin
The Skynet Funding Bill is passed. The system goes on-line August 4th, 1997. Human decisions are removed from strategic defense. Skynet begins to learn at a geometric rate. It becomes self-aware at 2:14 a.m. Eastern time, August 29th. In a panic, they try to pull the plug.
You may commence quivering now. I for one welcome our autonomous robotic hunter-killer overlords.
Cloned Milk!!! The overlords are already here, man.
http://www.cyclonedairy.com/