Embedded Player When Lucy Genao and her group of mothers with missing children began excavating a barren field on the outskirts of Colinas de Santa Fe, Veracruz last year, they didn't expect to find what some call the largest mass grave in Mexico. Most of the women had never dug a garden in their backyards, let alone exhumed a body. So far, they've found 287 bodies. Latino USA joins the mothers of Veracruz as they prepare to search for a new suspected gravesite. This story was reported in partnership with Harper's Magazine.