Captain's log, star date 2817.6. Starship Enterprise diverted from scheduled course. Purpose, to confirm discover by Doctor Thomas Leighton of an extraordinary new synthetic food which would totally end the threat of famine on Cygnia Minor, a nearby Earth colony.
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MCCOY: I appreciate whatever concern you may have for the ship's company, Mister Spock,
SPOCK: I will continue, Doctor. According to our library banks, it started on the Earth colony of Tarsus Four, when the food supply was attacked by an exotic fungus and largely destroyed. There were over eight thousand colonists and virtually no food. And that was when Governor Kodos seized full power and declared emergency martial law.
MCCOY: I've heard of it.
SPOCK: You may not have heard it all. Kodos began to separate the colonists. Some would live, be rationed whatever food was left. The remainder would be immediately put to death. Apparently he had his own theories of eugenics.