Salt Lake City is undertaking changes in the Rio Grande neighborhood that will drive out crime and allow homeless residents seeking help to get it, Mayor Jackie Biskupski told county leaders Tuesday. Steps to thwart drug dealers include installing new lights on 500 West, as well as surveillance cameras, new pavement that prevents people from hiding drugs among rocks that have been removed and, possibly soon, deploying drones. The update came as the city and county fell under sharp public cri... <iframe src="http://www.sltrib.com/csp/mediapool/sites/sltrib/pages/garss.csp" height="1" width="1" > </frame>