Cyborgs aren't just sci-fi any more

Cyborgs aren't just sci-fi any more
Cyborgs -- they're a staple of science fiction, from "Star Wars" to "Star Trek" and "The Terminator". But some real-life cyborgs are emerging -- and while they aren't exactly half-human, half-machine , they *are* using implantable technology in remarkable ways. Laurie Segall reports.