Military planners say robot soldiers will think, see and react increasingly like humans. In the beginning, they will be remote-controlled, looking and acting like lethal toy trucks. As the technology develops, they may take many shapes. And as their intelligence grows, so will their autonomy.
Despite the obstacles, Congress ordered in 2000 that a third of the ground vehicles and a third of deep-strike aircraft in the military must become robotic within a decade. If that mandate is to be met, the United States will spend many billions of dollars on military robots by 2010.
"The lawyers tell me there are no prohibitions against robots making life-or-death decisions," said Mr. Johnson, who leads robotics efforts at the Joint Forces Command research center in Suffolk, Va. "I have been asked what happens if the robot destroys a school bus rather than a tank parked nearby. We will not entrust a robot with that decision until we are confident they can make it."
"As machines become more intelligent, people will let machines make more of their decisions for them," Mr. Joy wrote recently in Wired magazine. "Eventually a stage may be reached at which the decisions necessary to keep the system running will be so complex that human beings will be incapable of making them intelligently. At that stage, the machines will be in effective control."
Seriously, what could go wrong?
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