Pope Benedict's Latin American Trip

People wave to Pope Benedict as he rides in his popemobile during his departure for the airport in Havana, Cuba, March 28, 2012. (AP)

Pope Benedict waves to people from his popemobile as he departs for the airport in Havana, March 28, 2012. (AP)

In this picture made available by the Vatican newspaper Osservatore Romano Pope Benedict meets with Fidel Castro in Havana, March 28, 2012. (AP/Osservatore Romano)

Pope Benedict presents a replica of Tolomeus Geography book to Cuba's President Raul Castro, center, during a meeting in Havana. (AP)

A group of women dressed in shirts that reads in Spanish; "Bienvenido," or "Welcome," wave to the pontiff upon his arrival at the Jose Marti International airport in Havana, Cuba, March 27, 2012. (AP)

Pope Benedict celebrates a mass at Revolution Square in Santiago de Cuba, March 26, 2012. (AP/Osservatore Romano)

Cuban President Raul Castro greets the pope after a Mass in Revolution Square in Santiago de Cuba, March 26, 2012. (AP)

Images of Pope Benedict by the French-Italian artist Gaspare Di Caro are projected on the facade of Havana's cathedral in Havana, Cuba, March 25, 2012. (AP)

Faithful watch live coverage of Pope Benedict on a giant TV screen as they wait for the new lights of the Christ King statue to be inaugurated remotely by the pope, at the Cubilete Hill near Silao, Mexico, March 25, 2012. (AP)

Fireworks explode as the new lights of the Christ King statue are inaugurated remotely by Pope Benedict . (AP)

Pope Benedict waves from the popemobile wearing a Mexican sombrero as he arrives to give a Mass in Bicentennial Park near Silao, Mexico, March 25, 2012. (AP)

Prelates take pictures of each other and the crowd of faithful gathered at the Parque del Bicentenario as they wait for the arrival of Pope Benedict for a Mass near Silao, Mexico, March 25, 2012. (AP)

Monsignor Georg Gaenswein, top right, holds a baby to be blessed by Pope Benedict , left, at Parque del Bicentenario in Silao, Mexico, March 25, 2012. (AP)