Re: Star Fleet and Genocide
Sure, Picard prevaricated about killing the Crystalline Entity, but he could have had sound tactical reasons for not killing his captive without interrogating it first; Kirk and Spock really dropped the ball there with the Space Amoeba.
I'm not sure how you interrogate a single-cell organism...
"If I hadn't tried, the cost would have been my soul." - Admiral James T. Kirk, Star Trek III: The Search for Spock