Really? Are you that incapable of comprehending his words, or are you deliberately trying to deny what he said? Who do you think he was talking about here? Context is important. You were taught that in 3rd grade. He is involved in a dispute with LEOs in his city, in that context he refers to cockroaches in his city. Are you going to argue he was talking about the public works department? You might be trying to parse grishams words, but he isn't.