Alpinestar - Clearly you lack an intellect. The government have spent many years conducting large scale experiments on terantulars. These terantulars have been given weapons to help guard the ice wall. The reason spiders were chosen was because they have 8 legs, thus meaning they can carry 8 guns, plus they always look pissed off, im sure you could hire security guards but they don't look that pissed off, what if they found alcohol or something then they would be happy. But these spiders don't like alcohol, not that I've ever asked them, although they could but I'm not sure. Last time I tried to feed beer to a daddy long legs it didn't end well. Poor spider.
Anyway, you're an idiot.
Ta Ta