The 1983 movie "Wargames" depicted a dystopian vision of a computer-controlled armageddon. Today, cyberwar is very much a reality. (United Artists)
Viruses like Stuxnet and Duqu are the atom bombs of cyberwarfare, experts say, a key tool in U.S. and foreign military arsenals. But some worry that this new generation of digital weapons could be co-opted by enemy forces -- and used against their creators.