The Argentine pontiff, who is wrapping up his three-country tour of South America, has made defending the poor a major theme of his "homecoming" trip, which also took him to Ecuador and Bolivia, ranked among Latin America's poorest countries.
Pope Francis' Visit to Latin America
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Nuns hold signs reading 'Holy Father' as they wait for Pope Francis at a meeting with priests and nuns in Don Bosco school, in Santa Cruz, July 9, 2015.
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Pope Francis walks with his pastoral staff to celebrate Mass at Bicentennial Park in Quito, Ecuador, July 7, 2015.