In Iguala, Mexico, 43 students have been missing for weeks, and their remains have not been among those discovered in several mass graves. The Mayor of Iguala and his wife are still in hiding, and the Governor of the State of Guerrero was forced to resign last week after Mexico City streets were packed with angry protesters. Last week saw the biggest demonstration in Mexico City since 2008. Yesterday, protesters blocked a highway to Acapulco for several hours. Will public outrage make a difference? Tracy Wilkinson reports from Mexico for the Los Angeles Times.