Cuban President Raul Castro (R) gestures as walks with Pope Benedict XVI upon arrival at Antonio Macedo aiport, in Santiago de Cuba, 915 km southeast of Havana on March 26, 2012. After a three-day visit to Mexico, Benedict XVI arrived in Cuba hoping to boost the Catholic Church's special dialogue with the Communist regime, as dissidents said a wave of arrests aimed to thwart demonstrations. AFP PHOTO/Rodrigo ARANGUA