As you can imagin, this is a possibility that was explored in SF. There was a novel by Frank Herbert (better known as the author of "Dune"), about one guy who designed a disease that killed only women. Not sure about the title, "The White Death" it might be.
>I thought the McDonalds menu at McDee's website was computer bio-warfare state of the art, but this trumps it!
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http://www.sianews.com/modules.php?name=News&file=article&sid=1990
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
