^Maybe the Volge don't have nerve gas either. Everybody is in relatively bad shape following the Pale Wars and the Arkfall, and the various Votan races are at a distinct disadvantage considering that they're refugees on someone else's turf. They only had what they brought with them, and a lot of that was no doubt expended in the wars and the initial Arkfall. Hey, I just thought of that -- everyone's comparing this to older shows like Firefly and Galactica and even Babylon 5, but the idea of alien refugees arriving in vast starships and having to assimilate with humans is reminiscent of the great '90s series Alien Nation. The difference being that in Defiance, even the humans are refugees along with everyone else.