Weapons of mass destruction aren't pulled out of a black hat like a white rabbit at a magic show. They're produced in factories. There's science and technology involved. They're not produced in a hole in the ground or in a basement.
Certainly going back to Sherlock Holmes we have a tradition of forensic science featured in detective stories.
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Beyond that I seem to be compelled to write science fiction rather than fantasy or mysteries or some other genre more likely to climb onto bestseller lists even though I enjoy reading a wide variety of literature both fiction and nonfiction.
