Reuters photographer Guglielmo Mangiapane waits in Saurimo, Angola, as crowds gather for Pope Leo's arrival, racing to capture the best photo of the pontiff despite technical difficulties and patchy connections. Pope Leo’s visit to Angola marks the third leg of an ambitious 10-day Africa tour, one of the most complicated ever conducted by a pope, with stops in 11 cities and towns in four countries, traversing nearly 18,000 km (11,185 miles) over 18 flights. The first U.S. pope, who has drawn