BUENOS AIRES, Argentina - Thousands of young Roman Catholics from around the Americas are converging on Rio de Janeiro, taking dayslong bus trips or expensive plane flights that were paid for by baking cookies and holding garage sales, running raffles and bingo tournaments and even begging for coins in public plazas. Some of the poorest traveled from so-called "misery villages" in Argentina's capital, thanks to donations from the Buenos Aires archdiocese. Their agenda at World Youth Day includes meeting with other disadvantaged youngsters in Manguinhos, a favela Pope Francis plans to visit, and sharing stories about Jorge Mario Bergoglio, the subway-riding Argentine Jesuit they now affectionately call their "slum pope." Road trips can be fun, but many have been expressing more profound emotions, excited by the changes they see in the church since Francis was elected in March. His first months as pope have already renewed their faith, many say, by showing how church leaders can get closer to their people and relate to their real-world problems with humor and a common touch. "Like anyone else, there have been times when I haven't had this faith at 100 percent.