Pope Francis waves at the crowd as he leaves San Cristobal de las Casas, in Chiapas, in the popemobile, after officiating an open-air mass on February 15, 2016. Pope Francis reached out to Mexico's long-marginalized indigenous population on Monday, asking for forgiveness over their exclusion as he celebrated an open-air mass in native languages in impoverished Chiapas state. While Chiapas is the country's least Catholic state, tens of thousands of people packed into a sports field in the southern city of San Cristobal de las Casas for the mass held under a papal decree that finally allowed Catholic liturgy in native languages. AFP PHOTO / JOHAN ORDONEZ