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from The Great Debate:

The robots of war

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Air Force airman performs tests on a Talon robot in Afghanistan in 2011. Photo from Air Force.

Here are just a few of the robots assigned to the U.S. Army's last combat brigade in Afghanistan: Tractor-size robots that trawl ahead of foot patrols, probing for buried bombs. Smaller 'bots that help blow up the uncovered incendiary devices. Unmanned aerial vehicles -- from tiny, hand-thrown models to a high-endurance version the size of a Cessna. Silent robot sentries that watch over sleeping U.S. troops.

The automaton warriors of the 1st Brigade, 1st Armored Division, deployed to volatile Kandahar province in southern Afghanistan since December represent the highs and lows of more than a decade of military robot development.

Highs because they potentially save many lives -- replacing people in some of the most dangerous tasks. Lows because many robots were designed specifically for the Iraq War but are now being used in Afghanistan -- where the unique enemy and terrain sometimes makes them ineffective.

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