Pope Francis waves as he arrives at the Kangemi slums in the outskirt of Kenya's capital Nairobi, November 27, 2015. (Photo by Noor Khamis/Reuters)





A woman waits to see Pope Francis near a news vendor stand in the Kangemi slums on the outskirt of Kenya's capital Nairobi November 27, 2015. (Photo by Noor Khamis/Reuters)





Pope Francis waves as he arrives at the Kangemi slums on the outskirts of Kenya's capital Nairobi, November 27, 2015. (Photo by Goran Tomasevic/Reuters)





Faithful wait for Pope Francis to arrive at the Kangemi slum in the outskirt of Kenya's capital Nairobi, November 27, 2015. (Photo by Goran Tomasevic/Reuters)





A woman holds a flag as Pope Francis' arrives at the Kangemi slums on the outskirt of Kenya's capital Nairobi November 27, 2015. (Photo by Stefano Rellandini/Reuters)





Men wait for Pope Francis to arrive at the Kangemi slum on the outskirts of Kenya's capital Nairobi, November 27, 2015. (Photo by Goran Tomasevic/Reuters)





Faithful stand as Pope Francis arrives at the Kangemi slum on the outskirts of Kenya's capital Nairobi, November 27, 2015. (Photo by Goran Tomasevic/Reuters)





A nun passes by a group of soldiers before Pope Francis' arrival at the Kangemi slum on the outskirts of Kenya's capital Nairobi, November 27, 2015. (Photo by Goran Tomasevic/Reuters)





People wait along a street before Pope Francis arrives at the Kangemi slums on the outskirt of Kenya's capital Nairobi November 27, 2015. (Photo by Stefano Rellandini/Reuters)





A woman walks at the Kangemi slums on the outskirt of Kenya's capital Nairobi, before Pope Francis' arrival on November 27, 2015. (Photo by Stefano Rellandini/Reuters)





A faithful holds a Pope Francis picture at the Kangemi slums on the outskirt of Kenya's capital Nairobi, November 27, 2015. (Photo by Stefano Rellandini/Reuters)





Faithful wave during Pope Francis' visit at the Kangemi slums on the outskirts of Kenya's capital Nairobi, November 27, 2015. (Photo by Stefano Rellandini/Reuters)





Kenyan military officers seen through a glass window at the presidential pavilion mount a guard of honor in respect of Pope Francis shortly before his departure from the Jomo Kenyatta International Airport, after a three day state visit Kenya's capital Nairobi November 27, 2015. (Photo by Noor Khamis/Reuters)





United Nations peacekeepers stand guard by the central mosque of the mostly Muslim PK 5 neighbourhood at the beginning of Friday prayers, where Pope Francis will visit, Bangui, Central African Republic, November 27, 2015. (Photo by Siegfried Modola/Reuters)





A United Nations peacekeeper stands guard during Friday prayers by the central mosque of the mostly Muslim PK 5 neighbourhood, where Pope Francis will visit, Bangui, Central African Republic, November 27, 2015. (Photo by Siegfried Modola/Reuters)





Men conduct Friday prayers by the central mosque of the mostly Muslim PK 5 neighbourhood, where Pope Francis will visit, Bangui, Central African Republic, November 27, 2015. (Photo by Siegfried Modola/Reuters)





United Nations peacekeepers man an intersection by the statue of the first leader of post-independence Central African Republic, Barthelemy Boganda, at the beginning of the mostly Muslim PK 5 neighbourhood, where Pope Francis will visit, Bangui, Central African Republic, November 27, 2015. (Photo by Siegfried Modola/Reuters)





A child looks on before Pope Francis' arrival in Munyonyo in Kampala, Uganda, November 27, 2015. (Photo by Stefano Rellandini/Reuters)





Pope Francis meets nuns and members of the clergy upon his arrival at the Entebbe international airport near the capital Uganda, November 27, 2015. (Photo by James Akena/Reuters)





A faithful holds candles before Pope Francis' arrival in Munyonyo in Kampala, Uganda, November 27, 2015. (Photo by Stefano Rellandini/Reuters)





A man wears his traditional tribal clothing as he waits for the arrival of Pope Francis' in Munyonyo in Kampala, Uganda, November 27, 2015. (Photo by Stefano Rellandini/Reuters)





Children cheer and wave during Pope Francis' visit to the Kangemi slum, in Nairobi, Kenya, Friday, November 27, 2015. Pope Francis denounced the conditions slum-dwellers are forced to live in during a visit to one of Nairobi's many shantytowns Friday, saying that access to safe water is a basic human right and that everyone should have dignified, adequate housing. (Photo by Andrew Medichini/AP Photo)