U.S. Vice President Joe Biden (C) walks with Villanueva City Mayor Edwin Escobar (R) and U.S. Ambassador in Guatemala, Todd Robinson (L) during his visit to the Model Police Precinct in Villa Nueva, in the outskirts of Guatemala City, March 3, 2015. Biden is in Guatemala to meet with leaders from Central America to discuss a billion-dollar aid plan. REUTERS/Jorge Dan Lopez (GUATEMALA - Tags: POLITICS)