I understand that the Brady Bunch wants everyone to light a candle to stop violence. This one time I'm linking to them, hoping they check their trackbacks.
That's a great idea. Being able to see clearly is part of being a responsible citizen, and responsible citizens want to throw light where it will do the most good. I'd prefer a flashlight, so that I could see more clearly as I'm engaging the threat, but a candle sends a symbolic warmth.
Hat tip to Weer'd World and Say Uncle.