From Popular Science:
Snake-like robots are nothing new -- for instance, Virginia Tech has developed some pretty amazing pole-climbing snakebots, and the Israeli military has a weaponized recon 'bot in the works -- but the U.S. Army Research Lab is taking military snakebots to a new level. Its Robotic Tentacle Manipulator is using snakebot tech to develop a scalable system in which several robots work in unison to manipulate objects.
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My Comment: It seems that all of this stuff has a "Terminator" theme to it.