Workers remove rubble from a destroyed school in Port-Au-Prince in early March. Haitians now must find a way to dispose of the estimated 25 million cubic yards of debris left in the wake of the powerful earthquake that struck the country in January. Thony Belizaire/AFP/Getty Images hide caption

itoggle caption Thony Belizaire/AFP/Getty Images

Students Aldo Vazquez (left), 17, and Juan Guerero, 10, pause next to a photo of late Bobby Salcedo during a vigil at Mountain View High School in El Monte, Calif., on Monday. Damian Dovarganes/AP hide caption

itoggle caption Damian Dovarganes/AP