Seems to me that genocide is usually suffered by populations that have had strict gun laws imposed upon them. It's a little harder to murder those that are as armed as you are. I think that is what was meant by having an "armed militia".

Surely, you don't want lawlessness, and that's what we see in the troubled regions of the world. But I don't think going too far the other way and being overly intrusive is good either. Punish a man for what he does, not what you think he might do. That's what I think is the best policy.