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Pope Francis' cap flies off his head as he deplanes in Havana, Cuba, Saturday, Sept. 19, 2015. The pope began his 10-day trip to Cuba and the United States, embarking on his first trip to the onetime Cold War foes after helping to nudge forward their historic rapprochement. (AP Photo/Ismael Francisco, Cubadebate Via AP)
Pope Francis' cap flies off his head as he deplanes in Havana, Cuba, Saturday, Sept. 19, 2015. The pope began his 10-day trip to Cuba and the United States, embarking on his first trip to the onetime Cold War foes after helping to nudge forward their historic rapprochement. (AP Photo/Ismael Francisco, Cubadebate Via AP)

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    Pope Francis arrives in Cuba

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Pope Francis arrives in Cuba

Cuba's President Raul Castro and the crowd welcome Pope Francis for his historic visit to Cuba.

Pope Francis arrives in Cuba

Cuba's President Raul Castro and the crowd welcome Pope Francis for his historic visit to Cuba.