In light of the recent most deadly suicide bombing in Iraq, I have to wonder why there aren't more pro-Iraq vigilantes. Maybe there are private vigilante groups that hunt down terrorists, but if so I haven't heard of them. Remember when that rebel shi'ite cleric al-Sadr was running amok? There were several groups of Iraqis who self-organized to help bring him down. If suicide bombings were a daily threat in America, I'd like to think that civilians would be eager to band together to take out the murderers, if the government proved unable to. I'm sure I don't have a full understanding of the situation on the ground in Iraq, but it takes significant infrastructure to pull off these bombings, so there must be plenty of people who know the whos and wheres.