The pope arrives in the country on Friday. Commentators James Kassaga Arinaitwe and Viviane Rutabingwa give him a crash course in the country's issues.
Fifty years ago, 40 bishops signed a pledge to make Catholicism a church for the poor. It was soon set aside, but with Pope Francis focused on the downtrodden, that notion could be revived.
The pontiff is expected to address issues of religious tolerance, economic inequality and global warming while he travels through Kenya, Uganda and the war-torn Central African Republic.
Those arrested include Spanish Monsignor Lucio Vallejo Balda and Francesca Immacolata Chaouqui, who served on the pope's special commission on economic reform.
Days before the release of books that purportedly contain revelations of corruption, the Holy See charged a monsignor and a public relations expert with leaking confidential information to the media.
The Catholic Church in the U.S. has been aging, along with its dwindling priestly ranks. But in the increasingly secular world, there's been a recent uptick in younger men studying to become priests.