Deb, I think the group you are referring to is the Guardian Angles, and I don't think dragon is talking about a group marching the streets looking for crime, and getting involved in investigations, many time hindering more than helping.
I think dragon is trying to say just to be more aware of what is going on, and if you see a wrong doing, for Heavens sake DO SOMETHING ABOUT IT!. Nobody does that anymore. Hell I've seen where people take videos to put on TruTV instead of dropping the camera and helping.
Dragon, if I spoke incorrectly about what you meant, I apologize.
I meant no disrepect or even to disagree with Nightdragon. My thought was that wearing a patch to advertise or state your intention, could bring unwanted attention from law enforcement. I would be extremely surprised after getting to know everyone here that anyone would sit back and not get involved when they saw something happening to an innocent person.