Personally, I've always liked the idea of a bioweapon line of techs that could eventually target a specific race once you researched it high enough. It'd work well for this type of thing, because you could just neglect to research a cure for a plague that only kills the Festron..
On another note, I feel like this comment will likely be taken out of context and torpedo my future campaign to be elected as Supreme President of the World some day...
-tid242