Even though the central government runs the police and nearly all other safety functions, Israeli communities also guard themselves. Within the Jewish settlements in Judea and Samaria on the West Bank, residents have set up their own emergency response centers. "Bulletproof vehicles aren't enough here. You need people to respond," says Yiftich Sapir, a supervisor at one response center created by the settlers' elected council. Located in the basement of a community center, the command room is staffed by citizen volunteers and army conscripts. Radios and ubiquitous cell phone links, as well as homing beacons and microphones built into settlers' cars, allow travellers to be closely tracked, and let authorities know right away when trouble is developing. Police, fire, and ambulance services can be dispatched from here, but in a dire emergency, armed settlers will pile into their own cars to help. Although they comprise less than 5 percent of the Israeli population, settlers living amongst Arab neighbors have recently accounted for about half of Israel's terrorist casualties--roughly the same death rate American troops faced in Vietnam.