B.J. Harrison reads a science fiction classic by Philip K. Dick. In a post-nuclear world, self-replicating robots are on the loose and thinking independently. Although originally designed to kill Soviet agents, the robots can no longer be trusted. The science fiction story "The Second Variety" from the mid-20th-century examines a world where nuclear war has left behind little of the world known to us and survival becomes increasingly difficult. The story was a finalist for the 1954 Retro-Hugo Award for Best Novelette and was turned into the science fiction horror film "Screamers" (1995).