"KANDAHAR, Afghanistan— (TCSM) In the shadow of a heavily fortified enemy building, US commanders call in a chemical robot, or what looks like a blob. They give it a simple instruction: Penetrate a crack in the building and find out what's inside. Like an ice sculpture or the liquid metal assassin in "Terminator 2," the device changes shape, slips through the opening, then reassumes its original form to look around. It uses sensors woven into its fabric to sample the area for biological agents. If needed, it can seep into the cracks of a bomb to defuse it."
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