From: mdhangton@gmail.com   
      
   Screen for known inherited disease carriers (accepting that I might   
   inadvertently screen *out* a genetic issue that could have saved the whole   
   colony)   
      
   What do you think that would be?   
   In crappy movie Species 2, I think, the monster leaves the black astronaut   
   alone as host for its progeny because he's carrier for sickle-cell anemia.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)