I thought I should clarify my moral position. I'm not advocating lying about Jehovah's Witnesses. People deserve to know the truth and lying or exaggerating about Jehovah's Witnesses is wrong. It is also usually counter productive. But even when it isn't, I wouldn't argue that the end justifies the means.
What I am saying is that I'm attacked (or my family is attacked) with a weapon or other device, then it is morally acceptable to use that weapon against the attacker. If someone attacks me with a bat, I will try to steal that bat from him and use it to defend myself, if necessary. The Watchtower Society uses a number of tools to control and intimidate its members. I do think it's justified to use these tools against them, if possible.