Pope Francis waves upon his arrival at the airport in Tuxtla Gutierrez, Mexico, Monday, Feb. 15, 2016. Francis is celebrating Mexico's Indians on Monday with a visit to Chiapas state, a center of indigenous culture, where he will preside over a Mass in three native languages thanks to a new Vatican decree approving their use in liturgy. The visit is also aimed at boosting the faith in the least Catholic state in Mexico. (AP Photo/Gregorio Borgia)