While I agree with most of what Kristin Rawls says about ordinary people supporting evil, I disagree with her about safety pins being worthless. They do one very important thing, even if you never encounter a situation in which you have to intervene: they prick the right-wing bubble. Every safety pin says to your average RWA that "here is someone who doesn't agree with you". And the more of them there are, the less secure the RWAs will be able to feel.