Mexico's president-elect takes office on Saturday. And topping Enrique Pena Nieto's agenda is the drug war that he'll inherit. Troops were put on the streets to combat Mexico's cartels, costing more than 60,000 lives in the past six years. But drug crime continues to spread across the region to areas including Sinaloa, Nuevo Leon and Durango. Last year the violence peaked: In Chihuahua state, more than 10,000 people have been killed since 2007. Al Jazeera's Lucia Newman has this report from Cuernavaca, just outside Mexico City.