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A United Nations special investigator recently called for a ban on production and use of lethal autonomous robotics, known as LARs. Critics these "killer robots" may one day choose and strike targets independently, human direction. UN official Christof Heyns says the lack of human raises many moral and ethical questions about LARs. He spoke in at a meeting of the UN Human Rights Council in Geneva, says the taking of any human life deserves a basic level consideration. Mr. Heyns says the deployment of machines to kill people be unacceptable because the world has yet to agree on legal in such cases. He says "killer robots" should not have the of life and death over human beings. He disagrees with people say robots could help reduce the possibility of what they call wars. Mr. Heyns says people make mistakes. They can act out fear or be driven by revenge or cruelty. But, unlike robots, can also act out of compassion. He says humans consider many things in each situation they face. Drone aircraft have also been point of debate in recent years. These vehicles are piloted by person on the ground. Many countries have drone programs. Drone strikes helped the United States in its battle against militants in countries as Afghanistan and Pakistan. In May, President Obama said the use drone strikes must be held to high standards. He called the of drones effective. But he noted that the new technology raises he called "profound questionsFor VOA Learning English, I'm Carolyn Presutti.

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