From drone helicopters to robot canines, the Pentagon is using Afghanistan to field test its vision of non-human warfare. Kaman Aerospace Corp.'s pilotless K-MAX helicopter is being used to airlift up to 6,000 pounds of supplies to remote mountain regions -- its first test in a war zone following widespread use in the logging industry. "Given the fact that traveling by ground convoy is not the preferred transportation, unmanned cargo flights can save pilots from routine unnecessary exposure," says a company spokesperson.

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