http://io9.com/5315547/will-new-intelligent-combat-robots-use-dead-bodies-for-fuel

Its not a lie. We are doomed. Apparently the human race decided it was ok to make robots that feed off the bio-chemicals of dead humans. (Mainly in the battlefield.) So where does it stop? When will the robots evolve and not be able to decide what is dead and what’s not?
How about if they can only feed on dead beings? Oh then your safe. BAM! One blow to the head with a robot arm and your down….dead. Time to feed. Enjoy your time now till Zombie Judgment Day. *nods*

(thanks for the link Adahlfin)

-Nick